Indicator Reference

AccelerationDecelerationOscillator

Alias:
  • AccDeOsc

Acceleration/Deceleration Technical Indicator (AC) measures acceleration and deceleration of the current driving force. This indicator will change direction before any changes in the driving force, which, it its turn, will change its direction before the price.

Formula:
  • AcdDecOsc = AwesomeOscillator - SMA(AwesomeOscillator, period)
See:
Lines:
  • accde
Params:
  • period (5)
  • movav (SMA)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (True)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • accde: - width (1.0) - alpha (0.5) - _method (bar)

Accum

Alias:
  • CumSum, CumulativeSum

Cummulative sum of the data values

Formula:
  • accum += data
Lines:
  • accum
Params:
  • seed (0.0)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (True)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • accum:

AdaptiveMovingAverage

Alias:
  • KAMA, MovingAverageAdaptive

Defined by Perry Kaufman in his book “Smarter Trading”.

It is A Moving Average with a continuously scaled smoothing factor by taking into account market direction and volatility. The smoothing factor is calculated from 2 ExponetialMovingAverage smoothing factors, a fast one and slow one.

If the market trends the value will tend to the fast ema smoothing period. If the market doesn’t trend it will move towards the slow EMA smoothing period.

It is a subclass of SmoothingMovingAverage, overriding once to account for the live nature of the smoothing factor

Formula:
  • direction = close - close_period
  • volatility = sumN(abs(close - close_n), period)
  • effiency_ratio = abs(direction / volatility)
  • fast = 2 / (fast_period + 1)
  • slow = 2 / (slow_period + 1)
  • smfactor = squared(efficienty_ratio * (fast - slow) + slow)
  • smfactor1 = 1.0 - smfactor
  • The initial seed value is a SimpleMovingAverage
See also:
Lines:
  • kama
Params:
  • period (30)
  • fast (2)
  • slow (30)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (False)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • kama:

AdaptiveMovingAverageEnvelope

Alias:
  • KAMAEnvelope, MovingAverageAdaptiveEnvelope

AdaptiveMovingAverage and envelope bands separated “perc” from it

Formula:
  • kama (from AdaptiveMovingAverage)
  • top = kama * (1 + perc)
  • bot = kama * (1 - perc)
See also:
Lines:
  • kama
  • top
  • bot
Params:
  • period (30)
  • fast (2)
  • slow (30)
  • perc (2.5)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (False)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • kama:
  • top: - _samecolor (True)
  • bot: - _samecolor (True)

AdaptiveMovingAverageOscillator

Alias:
  • AdaptiveMovingAverageOsc, KAMAOscillator, KAMAOsc, MovingAverageAdaptiveOscillator, MovingAverageAdaptiveOsc

Oscillation of a AdaptiveMovingAverage around its data

Lines:
  • kama
Params:
  • period (30)
  • fast (2)
  • slow (30)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (True)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • kama:
  • _0: - _name (osc)

AllN

Has a value of True (stored as 1.0 in the lines) if all of the values in the period evaluates to non-zero (ie: True)

Uses the built-in all for the calculation

Formula:
  • alln = all(data, period)
Lines:
  • alln
Params:
  • period (1)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (True)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • alln:

AnyN

Has a value of True (stored as 1.0 in the lines) if any of the values in the period evaluates to non-zero (ie: True)

Uses the built-in any for the calculation

Formula:
  • anyn = any(data, period)
Lines:
  • anyn
Params:
  • period (1)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (True)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • anyn:

ApplyN

Calculates func for a given period

Formula:
  • line = func(data, period)
Lines:
  • apply
Params:
  • period (1)
  • func (None)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (True)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • apply:

AroonDown

This is the AroonDown from the indicator AroonUpDown developed by Tushar Chande in 1995.

Formula:
  • down = 100 * (period - distance to lowest low) / period
Note:

The lines oscillate between 0 and 100. That means that the “distance” to the last highest or lowest must go from 0 to period so that the formula can yield 0 and 100.

Hence the lookback period is period + 1, because the current bar is also taken into account. And therefore this indicator needs an effective lookback period of period + 1.

See:
Lines:
  • aroondown
Params:
  • period (14)
  • upperband (70)
  • lowerband (30)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (True)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([0, 100])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.05)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • aroondown:

AroonOscillator

Alias:
  • AroonOsc

It is a variation of the AroonUpDown indicator which shows the current difference between the AroonUp and AroonDown value, trying to present a visualization which indicates which is stronger (greater than 0 -> AroonUp and less than 0 -> AroonDown)

Formula:
  • aroonosc = aroonup - aroondown
See:
Lines:
  • aroonosc
Params:
  • period (14)
  • upperband (70)
  • lowerband (30)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (True)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([0, 100])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.05)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • aroonosc:

AroonUp

This is the AroonUp from the indicator AroonUpDown developed by Tushar Chande in 1995.

Formula:
  • up = 100 * (period - distance to highest high) / period
Note:

The lines oscillate between 0 and 100. That means that the “distance” to the last highest or lowest must go from 0 to period so that the formula can yield 0 and 100.

Hence the lookback period is period + 1, because the current bar is also taken into account. And therefore this indicator needs an effective lookback period of period + 1.

See:
Lines:
  • aroonup
Params:
  • period (14)
  • upperband (70)
  • lowerband (30)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (True)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([0, 100])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.05)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • aroonup:

AroonUpDown

Alias:
  • AroonIndicator

Developed by Tushar Chande in 1995.

It tries to determine if a trend exists or not by calculating how far away within a given period the last highs/lows are (AroonUp/AroonDown)

Formula:
  • up = 100 * (period - distance to highest high) / period
  • down = 100 * (period - distance to lowest low) / period
Note:

The lines oscillate between 0 and 100. That means that the “distance” to the last highest or lowest must go from 0 to period so that the formula can yield 0 and 100.

Hence the lookback period is period + 1, because the current bar is also taken into account. And therefore this indicator needs an effective lookback period of period + 1.

See:
Lines:
  • aroonup
  • aroondown
Params:
  • period (14)
  • upperband (70)
  • lowerband (30)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (True)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([0, 100])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.05)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • aroonup:
  • aroondown:

AroonUpDownOscillator

Alias:
  • AroonUpDownOsc

Presents together the indicators AroonUpDown and AroonOsc

Formula:
(None, uses the aforementioned indicators)
See:
Lines:
  • aroonup
  • aroondown
  • aroonosc
Params:
  • period (14)
  • upperband (70)
  • lowerband (30)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (True)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([0, 100])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.05)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • aroonup:
  • aroondown:
  • aroonosc:

Average

Alias:
  • ArithmeticMean, Mean

Averages a given data arithmetically over a period

Formula:
  • av = data(period) / period
See also:
Lines:
  • av
Params:
  • period (1)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (True)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • av:

AverageDirectionalMovementIndex

Alias:
  • ADX

Defined by J. Welles Wilder, Jr. in 1978 in his book “New Concepts in Technical Trading Systems”.

Intended to measure trend strength

This indicator only shows ADX:
  • Use PlusDirectionalIndicator (PlusDI) to get +DI
  • Use MinusDirectionalIndicator (MinusDI) to get -DI
  • Use Directional Indicator (DI) to get +DI, -DI
  • Use AverageDirectionalIndexRating (ADXR) to get ADX, ADXR
  • Use DirectionalMovementIndex (DMI) to get ADX, +DI, -DI
  • Use DirectionalMovement (DM) to get ADX, ADXR, +DI, -DI
Formula:
  • upmove = high - high(-1)
  • downmove = low(-1) - low
  • +dm = upmove if upmove > downmove and upmove > 0 else 0
  • -dm = downmove if downmove > upmove and downmove > 0 else 0
  • +di = 100 * MovingAverage(+dm, period) / atr(period)
  • -di = 100 * MovingAverage(-dm, period) / atr(period)
  • dx = 100 * abs(+di - -di) / (+di + -di)
  • adx = MovingAverage(dx, period)

The moving average used is the one originally defined by Wilder, the SmoothedMovingAverage

See:
Lines:
  • adx
Params:
  • period (14)
  • movav (SmoothedMovingAverage)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (True)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • minusDI: - _name (-DI)
  • plusDI: - _name (+DI)
  • adx: - _name (ADX)

AverageDirectionalMovementIndexRating

Alias:
  • ADXR

Defined by J. Welles Wilder, Jr. in 1978 in his book “New Concepts in Technical Trading Systems”.

Intended to measure trend strength.

ADXR is the average of ADX with a value period bars ago

This indicator shows the ADX and ADXR:
  • Use PlusDirectionalIndicator (PlusDI) to get +DI
  • Use MinusDirectionalIndicator (MinusDI) to get -DI
  • Use Directional Indicator (DI) to get +DI, -DI
  • Use AverageDirectionalIndex (ADX) to get ADX
  • Use DirectionalMovementIndex (DMI) to get ADX, +DI, -DI
  • Use DirectionalMovement (DM) to get ADX, ADXR, +DI, -DI
Formula:
  • upmove = high - high(-1)
  • downmove = low(-1) - low
  • +dm = upmove if upmove > downmove and upmove > 0 else 0
  • -dm = downmove if downmove > upmove and downmove > 0 else 0
  • +di = 100 * MovingAverage(+dm, period) / atr(period)
  • -di = 100 * MovingAverage(-dm, period) / atr(period)
  • dx = 100 * abs(+di - -di) / (+di + -di)
  • adx = MovingAverage(dx, period)
  • adxr = (adx + adx(-period)) / 2

The moving average used is the one originally defined by Wilder, the SmoothedMovingAverage

See:
Lines:
  • adx
  • adxr
Params:
  • period (14)
  • movav (SmoothedMovingAverage)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (True)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • minusDI: - _name (-DI)
  • plusDI: - _name (+DI)
  • adx: - _name (ADX)
  • adxr: - _name (ADXR)

AverageTrueRange

Alias:
  • ATR

Defined by J. Welles Wilder, Jr. in 1978 in his book “New Concepts in Technical Trading Systems”.

The idea is to take the close into account to calculate the range if it yields a larger range than the daily range (High - Low)

Formula:
  • SmoothedMovingAverage(TrueRange, period)
See:
Lines:
  • atr
Params:
  • period (14)
  • movav (SmoothedMovingAverage)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (True)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • atr:

AwesomeOscillator

Alias:
  • AwesomeOsc, AO

Awesome Oscillator (AO) is a momentum indicator reflecting the precise changes in the market driving force which helps to identify the trend’s strength up to the points of formation and reversal.

Formula:
  • median price = (high + low) / 2
  • AO = SMA(median price, 5)- SMA(median price, 34)
See:
Lines:
  • ao
Params:
  • fast (5)
  • slow (34)
  • movav (SMA)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (True)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • ao: - width (1.0) - alpha (0.5) - _method (bar)

BaseApplyN

Base class for ApplyN and others which may take a func as a parameter but want to define the lines in the indicator.

Calculates func for a given period where func is given as a parameter, aka named argument or kwarg

Formula:
  • lines[0] = func(data, period)

Any extra lines defined beyond the first (index 0) are not calculated

Params:
  • period (1)
  • func (None)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (True)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])

BollingerBands

Alias:
  • BBands

Defined by John Bollinger in the 80s. It measures volatility by defining upper and lower bands at distance x standard deviations

Formula:
  • midband = SimpleMovingAverage(close, period)
  • topband = midband + devfactor * StandardDeviation(data, period)
  • botband = midband - devfactor * StandardDeviation(data, period)
See:
Lines:
  • mid
  • top
  • bot
Params:
  • period (20)
  • devfactor (2.0)
  • movav (MovingAverageSimple)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (False)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • top: - _samecolor (True)
  • bot: - _samecolor (True)
  • mid: - ls (–)

BollingerBandsPct

Extends the Bollinger Bands with a Percentage line

Lines:
  • mid
  • top
  • bot
  • pctb
Params:
  • period (20)
  • devfactor (2.0)
  • movav (MovingAverageSimple)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (False)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • top: - _samecolor (True)
  • bot: - _samecolor (True)
  • mid: - ls (–)
  • pctb: - _name (%B)

CointN

Calculates the score (coint_t) and pvalue for a given period for the data feeds

Uses pandas and statsmodels (for coint)

Lines:
  • score
  • pvalue
Params:
  • period (10)
  • regression (c)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (True)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • score:
  • pvalue:

CommodityChannelIndex

Alias:
  • CCI

Introduced by Donald Lambert in 1980 to measure variations of the “typical price” (see below) from its mean to identify extremes and reversals

Formula:
  • tp = typical_price = (high + low + close) / 3
  • tpmean = MovingAverage(tp, period)
  • deviation = tp - tpmean
  • meandev = MeanDeviation(tp)
  • cci = deviation / (meandeviation * factor)
See:
Lines:
  • cci
Params:
  • period (20)
  • factor (0.015)
  • movav (MovingAverageSimple)
  • upperband (100.0)
  • lowerband (-100.0)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (True)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • cci:

CrossDown

This indicator gives a signal if the 1st provided data crosses over the 2nd indicator upwards

It does need to look into the current time index (0) and the previous time index (-1) of both the 1t and 2nd data

This indicator is not automatically plotted

Formula:
  • downcross = data0(-1) > data1(-1) and data0(0) < data1(0)
Lines:
  • cross
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (True)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([0.0, 1.0])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.05)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • cross:

CrossOver

This indicator gives a signal if the provided datas (2) cross up or down.

  • 1.0 if the 1st data crosses the 2nd data upwards
  • -1.0 if the 1st data crosses the 2nd data downwards

It does need to look into the current time index (0) and the previous time index (-1) of both the 1t and 2nd data

This indicator is not automatically plotted

Formula:
  • upcross = data0(-1) < data1(-1) and data0(0) > data1(0)
  • downcross = data0(-1) > data1(-1) and data0(0) < data1(0)
  • crossover = upcross - downcross
Lines:
  • crossover
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (True)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([-1.0, 1.0])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.05)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • crossover:

CrossUp

This indicator gives a signal if the 1st provided data crosses over the 2nd indicator upwards

It does need to look into the current time index (0) and the previous time index (-1) of both the 1t and 2nd data

This indicator is not automatically plotted

Formula:
  • upcross = data0(-1) < data1(-1) and data0(0) > data1(0)
Lines:
  • cross
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (True)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([0.0, 1.0])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.05)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • cross:

DV2

RSI(2) alternative Developed by David Varadi of http://cssanalytics.wordpress.com/

This seems to be the Bounded version.

See also:

Lines:
  • dv2
Params:
  • period (252)
  • maperiod (2)
  • _movav (SMA)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (True)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • dv2:

DemarkPivotPoint

Defines a level of significance by taking into account the average of price bar components of the past period of a larger timeframe. For example when operating with days, the values are taking from the already “past” month fixed prices.

Example of using this indicator:

data = btfeeds.ADataFeed(dataname=x, timeframe=bt.TimeFrame.Days) cerebro.adddata(data) cerebro.resampledata(data, timeframe=bt.TimeFrame.Months)

In the __init__ method of the strategy:

pivotindicator = btind.DemarkPivotPoiont(self.data1) # the resampled data

The indicator will try to automatically plo to the non-resampled data. To disable this behavior use the following during construction:

  • _autoplot=False

Note:

The example shows days and months, but any combination of timeframes can be used. See the literature for recommended combinations
Formula:
  • if close < open x = high + (2 x low) + close
  • if close > open x = (2 x high) + low + close
  • if Close == open x = high + low + (2 x close)
  • p = x / 4
  • support1 = x / 2 - high
  • resistance1 = x / 2 - low
See:
Lines:
  • p
  • s1
  • r1
Params:
  • open (False)
  • close (False)
  • _autoplot (True)
  • level1 (0.382)
  • level2 (0.618)
  • level3 (1.0)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (False)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • p:
  • s1:
  • r1:

DetrendedPriceOscillator

Alias:
  • DPO

Defined by Joe DiNapoli in his book “Trading with DiNapoli levels”

It measures the price variations against a Moving Average (the trend) and therefore removes the “trend” factor from the price.

Formula:
  • movav = MovingAverage(close, period)
  • dpo = close - movav(shifted period / 2 + 1)
See:
Lines:
  • dpo
Params:
  • period (20)
  • movav (MovingAverageSimple)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (True)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([0.0])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • dpo:

DicksonMovingAverage

Alias:
  • DMA, DicksonMA

By Nathan Dickson

The Dickson Moving Average combines the ZeroLagIndicator (aka ErrorCorrecting or EC) by Ehlers, and the HullMovingAverage to try to deliver a result close to that of the Jurik Moving Averages

Formula:
  • ec = ZeroLagIndicator(period, gainlimit)

  • hma = HullMovingAverage(hperiod)

  • dma = (ec + hma) / 2

  • The default moving average for the ZeroLagIndicator is EMA, but can be changed with the parameter _movav

    Note

    the passed moving average must calculate alpha (and 1 - alpha) and make them available as attributes alpha and alpha1

  • The 2nd moving averag can be changed from Hull to anything else with the param _hma

See also:
Lines:
  • dma
Params:
  • period (30)
  • gainlimit (50)
  • hperiod (7)
  • _movav (EMA)
  • _hma (HMA)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (False)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • dma:

DicksonMovingAverageEnvelope

Alias:
  • DMAEnvelope, DicksonMAEnvelope

DicksonMovingAverage and envelope bands separated “perc” from it

Formula:
  • dma (from DicksonMovingAverage)
  • top = dma * (1 + perc)
  • bot = dma * (1 - perc)
See also:
Lines:
  • dma
  • top
  • bot
Params:
  • period (30)
  • gainlimit (50)
  • hperiod (7)
  • _movav (EMA)
  • _hma (HMA)
  • perc (2.5)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (False)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • dma:
  • top: - _samecolor (True)
  • bot: - _samecolor (True)

DicksonMovingAverageOscillator

Alias:
  • DicksonMovingAverageOsc, DMAOscillator, DMAOsc, DicksonMAOscillator, DicksonMAOsc

Oscillation of a DicksonMovingAverage around its data

Lines:
  • dma
Params:
  • period (30)
  • gainlimit (50)
  • hperiod (7)
  • _movav (EMA)
  • _hma (HMA)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (True)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • dma:
  • _0: - _name (osc)

DirectionalIndicator

Alias:
  • DI

Defined by J. Welles Wilder, Jr. in 1978 in his book “New Concepts in Technical Trading Systems”.

Intended to measure trend strength

This indicator shows +DI, -DI:
  • Use PlusDirectionalIndicator (PlusDI) to get +DI
  • Use MinusDirectionalIndicator (MinusDI) to get -DI
  • Use AverageDirectionalIndex (ADX) to get ADX
  • Use AverageDirectionalIndexRating (ADXR) to get ADX, ADXR
  • Use DirectionalMovementIndex (DMI) to get ADX, +DI, -DI
  • Use DirectionalMovement (DM) to get ADX, ADXR, +DI, -DI
Formula:
  • upmove = high - high(-1)
  • downmove = low(-1) - low
  • +dm = upmove if upmove > downmove and upmove > 0 else 0
  • -dm = downmove if downmove > upmove and downmove > 0 else 0
  • +di = 100 * MovingAverage(+dm, period) / atr(period)
  • -di = 100 * MovingAverage(-dm, period) / atr(period)

The moving average used is the one originally defined by Wilder, the SmoothedMovingAverage

See:
Lines:
  • plusDI
  • minusDI
Params:
  • period (14)
  • movav (SmoothedMovingAverage)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (True)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • minusDI:
  • plusDI:

DirectionalMovement

Alias:
  • DM

Defined by J. Welles Wilder, Jr. in 1978 in his book “New Concepts in Technical Trading Systems”.

Intended to measure trend strength

This indicator shows ADX, ADXR, +DI, -DI.

  • Use PlusDirectionalIndicator (PlusDI) to get +DI
  • Use MinusDirectionalIndicator (MinusDI) to get -DI
  • Use Directional Indicator (DI) to get +DI, -DI
  • Use AverageDirectionalIndex (ADX) to get ADX
  • Use AverageDirectionalIndexRating (ADXR) to get ADX, ADXR
  • Use DirectionalMovementIndex (DMI) to get ADX, +DI, -DI
Formula:
  • upmove = high - high(-1)
  • downmove = low(-1) - low
  • +dm = upmove if upmove > downmove and upmove > 0 else 0
  • -dm = downmove if downmove > upmove and downmove > 0 else 0
  • +di = 100 * MovingAverage(+dm, period) / atr(period)
  • -di = 100 * MovingAverage(-dm, period) / atr(period)
  • dx = 100 * abs(+di - -di) / (+di + -di)
  • adx = MovingAverage(dx, period)

The moving average used is the one originally defined by Wilder, the SmoothedMovingAverage

See:
Lines:
  • adx
  • adxr
  • plusDI
  • minusDI
Params:
  • period (14)
  • movav (SmoothedMovingAverage)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (True)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • minusDI:
  • plusDI:
  • adx: - _name (ADX)
  • adxr: - _name (ADXR)

DirectionalMovementIndex

Alias:
  • DMI

Defined by J. Welles Wilder, Jr. in 1978 in his book “New Concepts in Technical Trading Systems”.

Intended to measure trend strength

This indicator shows the ADX, +DI, -DI:
  • Use PlusDirectionalIndicator (PlusDI) to get +DI
  • Use MinusDirectionalIndicator (MinusDI) to get -DI
  • Use Directional Indicator (DI) to get +DI, -DI
  • Use AverageDirectionalIndex (ADX) to get ADX
  • Use AverageDirectionalIndexRating (ADXRating) to get ADX, ADXR
  • Use DirectionalMovement (DM) to get ADX, ADXR, +DI, -DI
Formula:
  • upmove = high - high(-1)
  • downmove = low(-1) - low
  • +dm = upmove if upmove > downmove and upmove > 0 else 0
  • -dm = downmove if downmove > upmove and downmove > 0 else 0
  • +di = 100 * MovingAverage(+dm, period) / atr(period)
  • -di = 100 * MovingAverage(-dm, period) / atr(period)
  • dx = 100 * abs(+di - -di) / (+di + -di)
  • adx = MovingAverage(dx, period)

The moving average used is the one originally defined by Wilder, the SmoothedMovingAverage

See:
Lines:
  • adx
  • plusDI
  • minusDI
Params:
  • period (14)
  • movav (SmoothedMovingAverage)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (True)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • minusDI:
  • plusDI:
  • adx: - _name (ADX)

DoubleExponentialMovingAverage

Alias:
  • DEMA, MovingAverageDoubleExponential

DEMA was first time introduced in 1994, in the article “Smoothing Data with Faster Moving Averages” by Patrick G. Mulloy in “Technical Analysis of Stocks & Commodities” magazine.

It attempts to reduce the inherent lag associated to Moving Averages

Formula:
  • dema = (2.0 - ema(data, period) - ema(ema(data, period), period)
See:
(None)
Lines:
  • dema
Params:
  • period (30)
  • _movav (EMA)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (False)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • dema:

DoubleExponentialMovingAverageEnvelope

Alias:
  • DEMAEnvelope, MovingAverageDoubleExponentialEnvelope

DoubleExponentialMovingAverage and envelope bands separated “perc” from it

Formula:
  • dema (from DoubleExponentialMovingAverage)
  • top = dema * (1 + perc)
  • bot = dema * (1 - perc)
See also:
Lines:
  • dema
  • top
  • bot
Params:
  • period (30)
  • _movav (EMA)
  • perc (2.5)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (False)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • dema:
  • top: - _samecolor (True)
  • bot: - _samecolor (True)

DoubleExponentialMovingAverageOscillator

Alias:
  • DoubleExponentialMovingAverageOsc, DEMAOscillator, DEMAOsc, MovingAverageDoubleExponentialOscillator, MovingAverageDoubleExponentialOsc

Oscillation of a DoubleExponentialMovingAverage around its data

Lines:
  • dema
Params:
  • period (30)
  • _movav (EMA)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (True)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • dema:
  • _0: - _name (osc)

DownDay

Defined by J. Welles Wilder, Jr. in 1978 in his book “New Concepts in Technical Trading Systems” for the RSI

Records days which have been “down”, i.e.: the close price has been lower than the day before.

Formula:
  • downday = max(close_prev - close, 0)
See:
Lines:
  • downday
Params:
  • period (1)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (True)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • downday:

DownDayBool

Defined by J. Welles Wilder, Jr. in 1978 in his book “New Concepts in Technical Trading Systems” for the RSI

Records days which have been “down”, i.e.: the close price has been lower than the day before.

Note:
  • This version returns a bool rather than the difference
Formula:
  • downday = close_prev > close
See:
Lines:
  • downday
Params:
  • period (1)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (True)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • downday:

DownMove

Defined by J. Welles Wilder, Jr. in 1978 in his book “New Concepts in Technical Trading Systems” as part of the Directional Move System to calculate Directional Indicators.

Positive if the given data has moved lower than the previous day

Formula:
  • downmove = data(-1) - data
See:
Lines:
  • downmove
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (True)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • downmove:

Envelope

It creates envelopes bands separated from the source data by a given percentage

Formula:
  • src = datasource
  • top = src * (1 + perc)
  • bot = src * (1 - perc)
See also:
Lines:
  • src
  • top
  • bot
Params:
  • perc (2.5)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (False)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • src: - _plotskip (True)
  • top: - _samecolor (True)
  • bot: - _samecolor (True)

ExponentialMovingAverage

Alias:
  • EMA, MovingAverageExponential

A Moving Average that smoothes data exponentially over time.

It is a subclass of SmoothingMovingAverage.

  • self.smfactor -> 2 / (1 + period)
  • self.smfactor1 -> 1 - self.smfactor
Formula:
  • movav = prev * (1.0 - smoothfactor) + newdata * smoothfactor
See also:
Lines:
  • ema
Params:
  • period (30)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (False)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • ema:

ExponentialMovingAverageEnvelope

Alias:
  • EMAEnvelope, MovingAverageExponentialEnvelope

ExponentialMovingAverage and envelope bands separated “perc” from it

Formula:
  • ema (from ExponentialMovingAverage)
  • top = ema * (1 + perc)
  • bot = ema * (1 - perc)
See also:
Lines:
  • ema
  • top
  • bot
Params:
  • period (30)
  • perc (2.5)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (False)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • ema:
  • top: - _samecolor (True)
  • bot: - _samecolor (True)

ExponentialMovingAverageOscillator

Alias:
  • ExponentialMovingAverageOsc, EMAOscillator, EMAOsc, MovingAverageExponentialOscillator, MovingAverageExponentialOsc

Oscillation of a ExponentialMovingAverage around its data

Lines:
  • ema
Params:
  • period (30)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (True)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • ema:
  • _0: - _name (osc)

ExponentialSmoothing

Alias:
  • ExpSmoothing

Averages a given data over a period using exponential smoothing

A regular ArithmeticMean (Average) is used as the seed value considering the first period values of data

Formula:
  • av = prev * (1 - alpha) + data * alpha
See also:
Lines:
  • av
Params:
  • period (1)
  • alpha (None)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (True)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • av:

ExponentialSmoothingDynamic

Alias:
  • ExpSmoothingDynamic

Averages a given data over a period using exponential smoothing

A regular ArithmeticMean (Average) is used as the seed value considering the first period values of data

Note:
  • alpha is an array of values which can be calculated dynamically
Formula:
  • av = prev * (1 - alpha) + data * alpha
See also:
Lines:
  • av
Params:
  • period (1)
  • alpha (None)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (True)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • av:

FibonacciPivotPoint

Defines a level of significance by taking into account the average of price bar components of the past period of a larger timeframe. For example when operating with days, the values are taking from the already “past” month fixed prices.

Fibonacci levels (configurable) are used to define the support/resistance levels

Example of using this indicator:

data = btfeeds.ADataFeed(dataname=x, timeframe=bt.TimeFrame.Days) cerebro.adddata(data) cerebro.resampledata(data, timeframe=bt.TimeFrame.Months)

In the __init__ method of the strategy:

pivotindicator = btind.FibonacciPivotPoiont(self.data1) # the resampled data

The indicator will try to automatically plo to the non-resampled data. To disable this behavior use the following during construction:

  • _autoplot=False

Note:

The example shows days and months, but any combination of timeframes can be used. See the literature for recommended combinations
Formula:
  • pivot = (h + l + c) / 3 # variants duplicate close or add open
  • support1 = p - level1 * (high - low) # level1 0.382
  • support2 = p - level2 * (high - low) # level1 0.618
  • support2 = p - level3 * (high - low) # level1 1.000
  • resistance1 = p + level1 * (high - low) # level1 0.382
  • resistance2 = p + level2 * (high - low) # level1 0.618
  • resistance2 = p + level3 * (high - low) # level1 1.000
See:
Lines:
  • p
  • s1
  • s2
  • s3
  • r1
  • r2
  • r3
Params:
  • open (False)
  • close (False)
  • _autoplot (True)
  • level1 (0.382)
  • level2 (0.618)
  • level3 (1.0)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (False)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • r1:
  • r2:
  • r3:
  • s3:
  • s2:
  • s1:
  • p:

FindFirstIndex

Returns the index of the last data that satisfies equality with the condition generated by the parameter _evalfunc

Note:
Returned indexes look backwards. 0 is the current index and 1 is the previous bar.
Formula:
  • index = first for which data[index] == _evalfunc(data)
Lines:
  • index
Params:
  • period (1)
  • _evalfunc (None)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (True)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • index:

FindFirstIndexHighest

Returns the index of the first data that is the highest in the period

Note:
Returned indexes look backwards. 0 is the current index and 1 is the previous bar.
Formula:
  • index = index of first data which is the highest
Lines:
  • index
Params:
  • period (1)
  • _evalfunc (<built-in function max>)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (True)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • index:

FindFirstIndexLowest

Returns the index of the first data that is the lowest in the period

Note:
Returned indexes look backwards. 0 is the current index and 1 is the previous bar.
Formula:
  • index = index of first data which is the lowest
Lines:
  • index
Params:
  • period (1)
  • _evalfunc (<built-in function min>)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (True)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • index:

FindLastIndex

Returns the index of the last data that satisfies equality with the condition generated by the parameter _evalfunc

Note:
Returned indexes look backwards. 0 is the current index and 1 is the previous bar.
Formula:
  • index = last for which data[index] == _evalfunc(data)
Lines:
  • index
Params:
  • period (1)
  • _evalfunc (None)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (True)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • index:

FindLastIndexHighest

Returns the index of the last data that is the highest in the period

Note:
Returned indexes look backwards. 0 is the current index and 1 is the previous bar.
Formula:
  • index = index of last data which is the highest
Lines:
  • index
Params:
  • period (1)
  • _evalfunc (<built-in function max>)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (True)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • index:

FindLastIndexLowest

Returns the index of the last data that is the lowest in the period

Note:
Returned indexes look backwards. 0 is the current index and 1 is the previous bar.
Formula:
  • index = index of last data which is the lowest
Lines:
  • index
Params:
  • period (1)
  • _evalfunc (<built-in function min>)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (True)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • index:

Fractal

References:
[Ref 1] http://www.investopedia.com/articles/trading/06/fractals.asp
Lines:
  • fractal_bearish
  • fractal_bullish
Params:
  • period (5)
  • bardist (0.015)
  • shift_to_potential_fractal (2)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (False)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • fractal_bullish: - color (lightblue) - marker (v) - markersize (4.0) - ls () - fillstyle (full)
  • fractal_bearish: - color (lightblue) - marker (^) - markersize (4.0) - ls () - fillstyle (full)

HeikinAshi

Heikin Ashi candlesticks in the forms of lines

Formula:
ha_open = (ha_open(-1) + ha_close(-1)) / 2 ha_high = max(hi, ha_open, ha_close) ha_low = min(lo, ha_open, ha_close) ha_close = (open + high + low + close) / 4
See also:
https://en.wikipedia.org/wiki/Candlestick_chart#Heikin_Ashi_candlesticks http://stockcharts.com/school/doku.php?id=chart_school:chart_analysis:heikin_ashi
Lines:
  • ha_open
  • ha_high
  • ha_low
  • ha_close
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (False)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • ha_close:
  • ha_open:
  • ha_low:
  • ha_high:

Highest

Alias:
  • MaxN

Calculates the highest value for the data in a given period

Uses the built-in max for the calculation

Formula:
  • highest = max(data, period)
Lines:
  • highest
Params:
  • period (1)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (True)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • highest:

HullMovingAverage

Alias:
  • HMA, HullMA

By Alan Hull

The Hull Moving Average solves the age old dilemma of making a moving average more responsive to current price activity whilst maintaining curve smoothness. In fact the HMA almost eliminates lag altogether and manages to improve smoothing at the same time.

Formula:
  • hma = wma(2 * wma(data, period // 2) - wma(data, period), sqrt(period))
See also:

Note:

  • Please note that the final minimum period is not the period passed with the parameter period. A final moving average on moving average is done in which the period is the square root of the original.

    In the default case of 30 the final minimum period before the moving average produces a non-NAN value is 34

Lines:
  • hma
Params:
  • period (30)
  • _movav (WMA)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (False)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • hma:

HullMovingAverageEnvelope

Alias:
  • HMAEnvelope, HullMAEnvelope

HullMovingAverage and envelope bands separated “perc” from it

Formula:
  • hma (from HullMovingAverage)
  • top = hma * (1 + perc)
  • bot = hma * (1 - perc)
See also:
Lines:
  • hma
  • top
  • bot
Params:
  • period (30)
  • _movav (WMA)
  • perc (2.5)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (False)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • hma:
  • top: - _samecolor (True)
  • bot: - _samecolor (True)

HullMovingAverageOscillator

Alias:
  • HullMovingAverageOsc, HMAOscillator, HMAOsc, HullMAOscillator, HullMAOsc

Oscillation of a HullMovingAverage around its data

Lines:
  • hma
Params:
  • period (30)
  • _movav (WMA)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (True)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • hma:
  • _0: - _name (osc)

HurstExponent

Alias:
  • Hurst

References:

Interpretation of the results

  1. Geometric random walk (H=0.5)
  2. Mean-reverting series (H<0.5)
  3. Trending Series (H>0.5)

Important notes:

  • The default period is 40, but experimentation by users has shown that it would be advisable to have at least 2000 samples (i.e.: a period of at least 2000) to have stable values.

  • The lag_start and lag_end values will default to be 2 and self.p.period / 2 unless the parameters are specified.

    Experimentation by users has also shown that values of around 10 and 500 produce good results

The original values (40, 2, self.p.period / 2) are kept for backwards compatibility

Lines:
  • hurst
Params:
  • period (40)
  • lag_start (None)
  • lag_end (None)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (True)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • hurst:

Ichimoku

Developed and published in his book in 1969 by journalist Goichi Hosoda

Formula:
  • tenkan_sen = (Highest(High, tenkan) + Lowest(Low, tenkan)) / 2.0
  • kijun_sen = (Highest(High, kijun) + Lowest(Low, kijun)) / 2.0

The next 2 are pushed 26 bars into the future

  • senkou_span_a = (tenkan_sen + kijun_sen) / 2.0
  • senkou_span_b = ((Highest(High, senkou) + Lowest(Low, senkou)) / 2.0

This is pushed 26 bars into the past

  • chikou = close

The cloud (Kumo) is formed by the area between the senkou_spans

See:
Lines:
  • tenkan_sen
  • kijun_sen
  • senkou_span_a
  • senkou_span_b
  • chikou_span
Params:
  • tenkan (9)
  • kijun (26)
  • senkou (52)
  • senkou_lead (26)
  • chikou (26)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (False)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • senkou_span_a: - _fill_gt ((u’senkou_span_b’, u’g’)) - _fill_lt ((u’senkou_span_b’, u’r’))
  • senkou_span_b:
  • chikou_span:
  • tenkan_sen:
  • kijun_sen:

KnowSureThing

Alias:
  • KST

It is a “summed” momentum indicator. Developed by Martin Pring and published in 1992 in Stocks & Commodities.

Formula:
  • rcma1 = MovAv(roc100(rp1), period)
  • rcma2 = MovAv(roc100(rp2), period)
  • rcma3 = MovAv(roc100(rp3), period)
  • rcma4 = MovAv(roc100(rp4), period)
  • kst = 1.0 * rcma1 + 2.0 * rcma2 + 3.0 * rcma3 + 4.0 * rcma4
  • signal = MovAv(kst, speriod)
See:

Params

  • rma1, rma2, rma3, rma4: for the MovingAverages on ROCs
  • rp1, rp2, rp3, rp4: for the ROCs
  • rsig: for the MovingAverage for the signal line
  • rfactors: list of factors to apply to the different MovAv(ROCs)
  • _movav and _movavs, allows to change the Moving Average type applied for the calculation of kst and signal
Lines:
  • kst
  • signal
Params:
  • rp1 (10)
  • rp2 (15)
  • rp3 (20)
  • rp4 (30)
  • rma1 (10)
  • rma2 (10)
  • rma3 (10)
  • rma4 (10)
  • rsignal (9)
  • rfactors ([1.0, 2.0, 3.0, 4.0])
  • _rmovav (SMA)
  • _smovav (SMA)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (True)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([0.0])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • kst:
  • signal:

LaguerreFilter

Alias:
  • LAGF

Defined by John F. Ehlers in Cybernetic Analysis for Stock and Futures, 2004, published by Wiley. ISBN: 978-0-471-46307-8

gamma is meant to have values between 0.2 and 0.8, with the best balance found theoretically at the default of 0.5

Lines:
  • lfilter
Params:
  • period (1)
  • gamma (0.5)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (False)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • lfilter:

LaguerreRSI

Alias:
  • LRSI

Defined by John F. Ehlers in Cybernetic Analysis for Stock and Futures, 2004, published by Wiley. ISBN: 978-0-471-46307-8

The Laguerre RSI tries to implements a better RSI by providing a sort of Time Warp without Time Travel using a Laguerre filter. This provides for faster reactions to price changes

gamma is meant to have values between 0.2 and 0.8, with the best balance found theoretically at the default of 0.5

Lines:
  • lrsi
Params:
  • period (6)
  • gamma (0.5)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (True)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.15)
  • plotlinelabels (False)
  • plotyticks ([0.0, 0.2, 0.5, 0.8, 1.0])
PlotLines:
  • lrsi:

LinePlotterIndicator

PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (True)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])

Lowest

Alias:
  • MinN

Calculates the lowest value for the data in a given period

Uses the built-in min for the calculation

Formula:
  • lowest = min(data, period)
Lines:
  • lowest
Params:
  • period (1)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (True)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • lowest:

MACD

Moving Average Convergence Divergence. Defined by Gerald Appel in the 70s.

It measures the distance of a short and a long term moving average to try to identify the trend.

A second lagging moving average over the convergence-divergence should provide a “signal” upon being crossed by the macd

Formula:
  • macd = ema(data, me1_period) - ema(data, me2_period)
  • signal = ema(macd, signal_period)
See:
Lines:
  • macd
  • signal
Params:
  • period_me1 (12)
  • period_me2 (26)
  • period_signal (9)
  • movav (ExponentialMovingAverage)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (True)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([0.0])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • signal: - ls (–)
  • macd:

MACDHisto

Alias:
  • MACDHistogram

Subclass of MACD which adds a “histogram” of the difference between the macd and signal lines

Formula:
  • histo = macd - signal
See:
Lines:
  • macd
  • signal
  • histo
Params:
  • period_me1 (12)
  • period_me2 (26)
  • period_signal (9)
  • movav (ExponentialMovingAverage)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (True)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([0.0])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • signal: - ls (–)
  • macd:
  • histo: - width (1.0) - alpha (0.5) - _method (bar)

MeanDeviation

Alias:
  • MeanDev

MeanDeviation (alias MeanDev)

Calculates the Mean Deviation of the passed data for a given period

Note:
  • If 2 datas are provided as parameters, the 2nd is considered to be the mean of the first
Formula:
  • mean = MovingAverage(data, period) (or provided mean)
  • absdeviation = abs(data - mean)
  • meandev = MovingAverage(absdeviation, period)
See:
Lines:
  • meandev
Params:
  • period (20)
  • movav (MovingAverageSimple)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (True)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • meandev:

MinusDirectionalIndicator

Alias:
  • MinusDI

Defined by J. Welles Wilder, Jr. in 1978 in his book “New Concepts in Technical Trading Systems”.

Intended to measure trend strength

This indicator shows -DI:
  • Use PlusDirectionalIndicator (PlusDI) to get +DI
  • Use Directional Indicator (DI) to get +DI, -DI
  • Use AverageDirectionalIndex (ADX) to get ADX
  • Use AverageDirectionalIndexRating (ADXR) to get ADX, ADXR
  • Use DirectionalMovementIndex (DMI) to get ADX, +DI, -DI
  • Use DirectionalMovement (DM) to get ADX, ADXR, +DI, -DI
Formula:
  • upmove = high - high(-1)
  • downmove = low(-1) - low
  • -dm = downmove if downmove > upmove and downmove > 0 else 0
  • -di = 100 * MovingAverage(-dm, period) / atr(period)

The moving average used is the one originally defined by Wilder, the SmoothedMovingAverage

See:
Lines:
  • minusDI
Params:
  • period (14)
  • movav (SmoothedMovingAverage)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (True)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname (-DirectionalIndicator)
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • minusDI:
  • plusDI: - _name (+DI)

Momentum

Measures the change in price by calculating the difference between the current price and the price from a given period ago

Formula:
  • momentum = data - data_period
See:
Lines:
  • momentum
Params:
  • period (12)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (True)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([0.0])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • momentum:

MomentumOscillator

Alias:
  • MomentumOsc

Measures the ratio of change in prices over a period

Formula:
  • mosc = 100 * (data / data_period)
See:
Lines:
  • momosc
Params:
  • period (12)
  • band (100.0)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (True)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • momosc:

MovingAverageBase

Params:
  • period (30)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (False)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])

MovingAverageSimple

Alias:
  • SMA, SimpleMovingAverage

Non-weighted average of the last n periods

Formula:
  • movav = Sum(data, period) / period
See also:
Lines:
  • sma
Params:
  • period (30)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (False)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • sma:

MovingAverageSimpleEnvelope

Alias:
  • SMAEnvelope, SimpleMovingAverageEnvelope

MovingAverageSimple and envelope bands separated “perc” from it

Formula:
  • sma (from MovingAverageSimple)
  • top = sma * (1 + perc)
  • bot = sma * (1 - perc)
See also:
Lines:
  • sma
  • top
  • bot
Params:
  • period (30)
  • perc (2.5)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (False)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • sma:
  • top: - _samecolor (True)
  • bot: - _samecolor (True)

MovingAverageSimpleOscillator

Alias:
  • MovingAverageSimpleOsc, SMAOscillator, SMAOsc, SimpleMovingAverageOscillator, SimpleMovingAverageOsc

Oscillation of a MovingAverageSimple around its data

Lines:
  • sma
Params:
  • period (30)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (True)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • sma:
  • _0: - _name (osc)

OLS_BetaN

Calculates a regression of data1 on data0 using pandas.ols

Uses pandas

Lines:
  • beta
Params:
  • period (10)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (True)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • beta:

OLS_Slope_InterceptN

Calculates a linear regression using statsmodel.OLS (Ordinary least squares) of data1 on data0

Uses pandas and statsmodels

Use prepend_constant to influence the paramter prepend of sm.add_constant

Lines:
  • slope
  • intercept
Params:
  • period (10)
  • prepend_constant (True)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (True)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • slope:
  • intercept:

OLS_TransformationN

Calculates the zscore for data0 and data1. Although it doesn’t directly uses any external package it relies on OLS_SlopeInterceptN which uses pandas and statsmodels

Lines:
  • spread
  • spread_mean
  • spread_std
  • zscore
Params:
  • period (10)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (True)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • spread_mean:
  • spread_std:
  • zscore:
  • spread:

OperationN

Calculates “func” for a given period

Serves as a base for classes that work with a period and can express the logic in a callable object

Note:
Base classes must provide a “func” attribute which is a callable
Formula:
  • line = func(data, period)
Params:
  • period (1)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (True)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])

Oscillator

Oscillation of a given data around another data

Datas:

This indicator can accept 1 or 2 datas for the calculation.

  • If 1 data is provided, it must be a complex “Lines” object (indicator) which also has “datas”. Example: A moving average

    The calculated oscillation will be that of the Moving Average (in the example) around the data that was used for the average calculation

  • If 2 datas are provided the calculated oscillation will be that of the 2nd data around the 1st data

Formula:
  • 1 data -> osc = data.data - data
  • 2 datas -> osc = data0 - data1
Lines:
  • osc
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (True)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • osc:
  • _0: - _name (osc)

OscillatorMixIn

MixIn class to create a subclass with another indicator. The main line of that indicator will be substracted from the other base class main line creating an oscillator

The usage is:

  • Class XXXOscillator(XXX, OscillatorMixIn)
Formula:
  • XXX calculates lines[0]
  • osc = self.data - XXX.lines[0]
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (True)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • _0: - _name (osc)

ParabolicSAR

Alias:
  • PSAR

Defined by J. Welles Wilder, Jr. in 1978 in his book “New Concepts in Technical Trading Systems” for the RSI

SAR stands for Stop and Reverse and the indicator was meant as a signal for entry (and reverse)

How to select the 1st signal is left unspecified in the book and the increase/decrease of bars

See:
Lines:
  • psar
Params:
  • period (2)
  • af (0.02)
  • afmax (0.2)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (False)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • psar: - color (black) - marker (.) - markersize (4.0) - ls () - fillstyle (full)

PercentChange

Alias:
  • PctChange

Measures the perccentage change of the current value with respect to that of period bars ago

Lines:
  • pctchange
Params:
  • period (30)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (True)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • pctchange: - _name (%change)

PercentRank

Alias:
  • PctRank

Measures the percent rank of the current value with respect to that of period bars ago

Lines:
  • pctrank
Params:
  • period (50)
  • func (<function <lambda> at 0x00000000058E6CF8>)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (True)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • pctrank:

PercentagePriceOscillator

Alias:
  • PPO, PercPriceOsc

Shows the difference between a short and long exponential moving averages expressed in percentage. The MACD does the same but expressed in absolute points.

Expressing the difference in percentage allows to compare the indicator at different points in time when the underlying value has significatnly different values.

Formula:
  • po = 100 * (ema(short) - ema(long)) / ema(long)
See:
Lines:
  • ppo
  • signal
  • histo
Params:
  • period1 (12)
  • period2 (26)
  • _movav (ExponentialMovingAverage)
  • period_signal (9)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (True)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([0.0])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • signal:
  • ppo:
  • histo: - width (1.0) - alpha (0.5) - _method (bar)

PercentagePriceOscillatorShort

Alias:
  • PPOShort, PercPriceOscShort

Shows the difference between a short and long exponential moving averages expressed in percentage. The MACD does the same but expressed in absolute points.

Expressing the difference in percentage allows to compare the indicator at different points in time when the underlying value has significatnly different values.

Most on-line literature shows the percentage calculation having the long exponential moving average as the denominator. Some sources like MetaStock use the short one.

Formula:
  • po = 100 * (ema(short) - ema(long)) / ema(short)
See:
Lines:
  • ppo
  • signal
  • histo
Params:
  • period1 (12)
  • period2 (26)
  • _movav (ExponentialMovingAverage)
  • period_signal (9)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (True)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([0.0])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • signal:
  • ppo:
  • histo: - width (1.0) - alpha (0.5) - _method (bar)

PeriodN

Base class for indicators which take a period (__init__ has to be called either via super or explicitly)

This class has no defined lines

Params:
  • period (1)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (True)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])

PivotPoint

Defines a level of significance by taking into account the average of price bar components of the past period of a larger timeframe. For example when operating with days, the values are taking from the already “past” month fixed prices.

Example of using this indicator:

data = btfeeds.ADataFeed(dataname=x, timeframe=bt.TimeFrame.Days) cerebro.adddata(data) cerebro.resampledata(data, timeframe=bt.TimeFrame.Months)

In the __init__ method of the strategy:

pivotindicator = btind.PivotPoiont(self.data1) # the resampled data

The indicator will try to automatically plo to the non-resampled data. To disable this behavior use the following during construction:

  • _autoplot=False

Note:

The example shows days and months, but any combination of timeframes can be used. See the literature for recommended combinations
Formula:
  • pivot = (h + l + c) / 3 # variants duplicate close or add open
  • support1 = 2.0 * pivot - high
  • support2 = pivot - (high - low)
  • resistance1 = 2.0 * pivot - low
  • resistance2 = pivot + (high - low)
See:
Lines:
  • p
  • s1
  • s2
  • r1
  • r2
Params:
  • open (False)
  • close (False)
  • _autoplot (True)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (False)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • p:
  • s1:
  • r1:
  • r2:
  • s2:

PlusDirectionalIndicator

Alias:
  • PlusDI

Defined by J. Welles Wilder, Jr. in 1978 in his book “New Concepts in Technical Trading Systems”.

Intended to measure trend strength

This indicator shows +DI:
  • Use MinusDirectionalIndicator (MinusDI) to get -DI
  • Use Directional Indicator (DI) to get +DI, -DI
  • Use AverageDirectionalIndex (ADX) to get ADX
  • Use AverageDirectionalIndexRating (ADXR) to get ADX, ADXR
  • Use DirectionalMovementIndex (DMI) to get ADX, +DI, -DI
  • Use DirectionalMovement (DM) to get ADX, ADXR, +DI, -DI
Formula:
  • upmove = high - high(-1)
  • downmove = low(-1) - low
  • +dm = upmove if upmove > downmove and upmove > 0 else 0
  • +di = 100 * MovingAverage(+dm, period) / atr(period)

The moving average used is the one originally defined by Wilder, the SmoothedMovingAverage

See:
Lines:
  • plusDI
Params:
  • period (14)
  • movav (SmoothedMovingAverage)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (True)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname (+DirectionalIndicator)
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • minusDI: - _name (-DI)
  • plusDI:

PrettyGoodOscillator

Alias:
  • PGO, PrettyGoodOsc

The “Pretty Good Oscillator” (PGO) by Mark Johnson measures the distance of the current close from its simple moving average of period Average), expressed in terms of an average true range (see Average True Range) over a similar period.

So for instance a PGO value of +2.5 would mean the current close is 2.5 average days’ range above the SMA.

Johnson’s approach was to use it as a breakout system for longer term trades. If the PGO rises above 3.0 then go long, or below -3.0 then go short, and in both cases exit on returning to zero (which is a close back at the SMA).

Formula:
  • pgo = (data.close - sma(data, period)) / atr(data, period)
See also:
Lines:
  • pgo
Params:
  • period (14)
  • _movav (MovingAverageSimple)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (True)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • pgo:

PriceOscillator

Alias:
  • PriceOsc, AbsolutePriceOscillator, APO, AbsPriceOsc

Shows the difference between a short and long exponential moving averages expressed in points.

Formula:
  • po = ema(short) - ema(long)
See:
Lines:
  • po
Params:
  • period1 (12)
  • period2 (26)
  • _movav (ExponentialMovingAverage)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (True)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([0.0])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • po:

RSI_EMA

Uses an ExponentialMovingAverage as described in Wikipedia

See:
Lines:
  • rsi
Params:
  • period (14)
  • movav (ExponentialMovingAverage)
  • upperband (70.0)
  • lowerband (30.0)
  • safediv (False)
  • safehigh (100.0)
  • safelow (50.0)
  • lookback (1)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (True)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • rsi:

RSI_SMA

Alias:
  • RSI_Cutler

Uses a SimpleMovingAverage as described in Wikipedia and other soures

See:
Lines:
  • rsi
Params:
  • period (14)
  • movav (MovingAverageSimple)
  • upperband (70.0)
  • lowerband (30.0)
  • safediv (False)
  • safehigh (100.0)
  • safelow (50.0)
  • lookback (1)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (True)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • rsi:

RSI_Safe

Subclass of RSI which changes parameers safediv to True as the default value

See:
Lines:
  • rsi
Params:
  • period (14)
  • movav (SmoothedMovingAverage)
  • upperband (70.0)
  • lowerband (30.0)
  • safediv (True)
  • safehigh (100.0)
  • safelow (50.0)
  • lookback (1)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (True)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • rsi:

RateOfChange

Alias:
  • ROC

Measures the ratio of change in prices over a period

Formula:
  • roc = (data - data_period) / data_period
See:
Lines:
  • roc
Params:
  • period (12)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (True)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • roc:

RateOfChange100

Alias:
  • ROC100

Measures the ratio of change in prices over a period with base 100

This is for example how ROC is defined in stockcharts

Formula:
  • roc = 100 * (data - data_period) / data_period
See:
Lines:
  • roc100
Params:
  • period (12)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (True)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • roc100:

ReduceN

Calculates the Reduced value of the period data points applying function

Uses the built-in reduce for the calculation plus the func that subclassess define

Formula:
  • reduced = reduce(function(data, period)), initializer=initializer)

Notes:

  • In order to mimic the python reduce, this indicator takes a function non-named argument as the 1st argument, unlike other Indicators which take only named arguments
Lines:
  • reduced
Params:
  • period (1)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (True)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • reduced:

RelativeMomentumIndex

Alias:
  • RMI

Description: The Relative Momentum Index was developed by Roger Altman and was introduced in his article in the February, 1993 issue of Technical Analysis of Stocks & Commodities magazine.

While your typical RSI counts up and down days from close to close, the Relative Momentum Index counts up and down days from the close relative to a close x number of days ago. The result is an RSI that is a bit smoother.

Usage: Use in the same way you would any other RSI . There are overbought and oversold zones, and can also be used for divergence and trend analysis.

See:
Lines:
  • rsi
Params:
  • period (20)
  • movav (SmoothedMovingAverage)
  • upperband (70.0)
  • lowerband (30.0)
  • safediv (False)
  • safehigh (100.0)
  • safelow (50.0)
  • lookback (5)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (True)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • rsi: - _name (rmi)

RelativeStrengthIndex

Alias:
  • RSI, RSI_SMMA, RSI_Wilder

Defined by J. Welles Wilder, Jr. in 1978 in his book “New Concepts in Technical Trading Systems”.

It measures momentum by calculating the ration of higher closes and lower closes after having been smoothed by an average, normalizing the result between 0 and 100

Formula:
  • up = upday(data)
  • down = downday(data)
  • maup = movingaverage(up, period)
  • madown = movingaverage(down, period)
  • rs = maup / madown
  • rsi = 100 - 100 / (1 + rs)

The moving average used is the one originally defined by Wilder, the SmoothedMovingAverage

See:
Notes:
  • safediv (default: False) If this parameter is True the division rs = maup / madown will be checked for the special cases in which a 0 / 0 or x / 0 division will happen
  • safehigh (default: 100.0) will be used as RSI value for the x / 0 case
  • safelow (default: 50.0) will be used as RSI value for the 0 / 0 case
Lines:
  • rsi
Params:
  • period (14)
  • movav (SmoothedMovingAverage)
  • upperband (70.0)
  • lowerband (30.0)
  • safediv (False)
  • safehigh (100.0)
  • safelow (50.0)
  • lookback (1)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (True)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • rsi:

Signal

Lines:
  • signal
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (True)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • signal:

SmoothedMovingAverage

Alias:
  • SMMA, WilderMA, MovingAverageSmoothed, MovingAverageWilder, ModifiedMovingAverage

Smoothing Moving Average used by Wilder in his 1978 book New Concepts in Technical Trading

Defined in his book originally as:

  • new_value = (old_value * (period - 1) + new_data) / period

Can be expressed as a SmoothingMovingAverage with the following factors:

  • self.smfactor -> 1.0 / period
  • self.smfactor1 -> 1.0 - self.smfactor
Formula:
  • movav = prev * (1.0 - smoothfactor) + newdata * smoothfactor
See also:
Lines:
  • smma
Params:
  • period (30)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (False)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • smma:

SmoothedMovingAverageEnvelope

Alias:
  • SMMAEnvelope, WilderMAEnvelope, MovingAverageSmoothedEnvelope, MovingAverageWilderEnvelope, ModifiedMovingAverageEnvelope

SmoothedMovingAverage and envelope bands separated “perc” from it

Formula:
  • smma (from SmoothedMovingAverage)
  • top = smma * (1 + perc)
  • bot = smma * (1 - perc)
See also:
Lines:
  • smma
  • top
  • bot
Params:
  • period (30)
  • perc (2.5)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (False)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • smma:
  • top: - _samecolor (True)
  • bot: - _samecolor (True)

SmoothedMovingAverageOscillator

Alias:
  • SmoothedMovingAverageOsc, SMMAOscillator, SMMAOsc, WilderMAOscillator, WilderMAOsc, MovingAverageSmoothedOscillator, MovingAverageSmoothedOsc, MovingAverageWilderOscillator, MovingAverageWilderOsc, ModifiedMovingAverageOscillator, ModifiedMovingAverageOsc

Oscillation of a SmoothedMovingAverage around its data

Lines:
  • smma
Params:
  • period (30)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (True)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • smma:
  • _0: - _name (osc)

StandardDeviation

Alias:
  • StdDev

Calculates the standard deviation of the passed data for a given period

Note:
  • If 2 datas are provided as parameters, the 2nd is considered to be the mean of the first
  • safepow (default: False) If this parameter is True, the standard deviation will be calculated as pow(abs(meansq - sqmean), 0.5) to safe guard for possible negative results of meansq - sqmean caused by the floating point representation.
Formula:
  • meansquared = SimpleMovingAverage(pow(data, 2), period)
  • squaredmean = pow(SimpleMovingAverage(data, period), 2)
  • stddev = pow(meansquared - squaredmean, 0.5) # square root
See:
Lines:
  • stddev
Params:
  • period (20)
  • movav (MovingAverageSimple)
  • safepow (True)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (True)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • stddev:

Stochastic

Alias:
  • StochasticSlow

The regular (or slow version) adds an additional moving average layer and thus:

  • The percD line of the StochasticFast becomes the percK line
  • percD becomes a moving average of period_dslow of the original percD
Formula:
  • k = k
  • d = d
  • d = MovingAverage(d, period_dslow)
See:
Lines:
  • percK
  • percD
Params:
  • period (14)
  • period_dfast (3)
  • movav (MovingAverageSimple)
  • upperband (80.0)
  • lowerband (20.0)
  • safediv (False)
  • safezero (0.0)
  • period_dslow (3)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (True)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • percK: - _name (%K)
  • percD: - ls (–) - _name (%D)

StochasticFast

By Dr. George Lane in the 50s. It compares a closing price to the price range and tries to show convergence if the closing prices are close to the extremes

  • It will go up if closing prices are close to the highs
  • It will roughly go down if closing prices are close to the lows

It shows divergence if the extremes keep on growing but closing prices do not in the same manner (distance to the extremes grow)

Formula:
  • hh = highest(data.high, period)
  • ll = lowest(data.low, period)
  • knum = data.close - ll
  • kden = hh - ll
  • k = 100 * (knum / kden)
  • d = MovingAverage(k, period_dfast)
See:
Lines:
  • percK
  • percD
Params:
  • period (14)
  • period_dfast (3)
  • movav (MovingAverageSimple)
  • upperband (80.0)
  • lowerband (20.0)
  • safediv (False)
  • safezero (0.0)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (True)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • percK: - _name (%K)
  • percD: - ls (–) - _name (%D)

StochasticFull

This version displays the 3 possible lines:

  • percK
  • percD
  • percSlow
Formula:
  • k = d
  • d = MovingAverage(k, period_dslow)
  • dslow =
See:
Lines:
  • percK
  • percD
  • percDSlow
Params:
  • period (14)
  • period_dfast (3)
  • movav (MovingAverageSimple)
  • upperband (80.0)
  • lowerband (20.0)
  • safediv (False)
  • safezero (0.0)
  • period_dslow (3)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (True)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • percK: - _name (%K)
  • percD: - ls (–) - _name (%D)
  • percDSlow: - _name (%DSlow)

SumN

Calculates the Sum of the data values over a given period

Uses math.fsum for the calculation rather than the built-in sum to avoid precision errors

Formula:
  • sumn = sum(data, period)
Lines:
  • sumn
Params:
  • period (1)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (True)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • sumn:

TripleExponentialMovingAverage

Alias:
  • TEMA, MovingAverageTripleExponential

TEMA was first time introduced in 1994, in the article “Smoothing Data with Faster Moving Averages” by Patrick G. Mulloy in “Technical Analysis of Stocks & Commodities” magazine.

It attempts to reduce the inherent lag associated to Moving Averages

Formula:
  • ema1 = ema(data, period)
  • ema2 = ema(ema1, period)
  • ema3 = ema(ema2, period)
  • tema = 3 * ema1 - 3 * ema2 + ema3
See:
(None)
Lines:
  • tema
Params:
  • period (30)
  • _movav (EMA)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (False)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • tema:

TripleExponentialMovingAverageEnvelope

Alias:
  • TEMAEnvelope, MovingAverageTripleExponentialEnvelope

TripleExponentialMovingAverage and envelope bands separated “perc” from it

Formula:
  • tema (from TripleExponentialMovingAverage)
  • top = tema * (1 + perc)
  • bot = tema * (1 - perc)
See also:
Lines:
  • tema
  • top
  • bot
Params:
  • period (30)
  • _movav (EMA)
  • perc (2.5)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (False)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • tema:
  • top: - _samecolor (True)
  • bot: - _samecolor (True)

TripleExponentialMovingAverageOscillator

Alias:
  • TripleExponentialMovingAverageOsc, TEMAOscillator, TEMAOsc, MovingAverageTripleExponentialOscillator, MovingAverageTripleExponentialOsc

Oscillation of a TripleExponentialMovingAverage around its data

Lines:
  • tema
Params:
  • period (30)
  • _movav (EMA)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (True)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • tema:
  • _0: - _name (osc)

Trix

Alias:
  • TRIX

Defined by Jack Hutson in the 80s and shows the Rate of Change (%) or slope of a triple exponentially smoothed moving average

Formula:
  • ema1 = EMA(data, period)
  • ema2 = EMA(ema1, period)
  • ema3 = EMA(ema2, period)
  • trix = 100 * (ema3 - ema3(-1)) / ema3(-1)

The final formula can be simplified to: 100 * (ema3 / ema3(-1) - 1)

The moving average used is the one originally defined by Wilder, the SmoothedMovingAverage

See:
Lines:
  • trix
Params:
  • period (15)
  • _rocperiod (1)
  • _movav (EMA)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (True)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([0.0])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • trix:

TrixSignal

Extension of Trix with a signal line (ala MACD)

Formula:
  • trix = Trix(data, period)
  • signal = EMA(trix, sigperiod)
See:
Lines:
  • trix
  • signal
Params:
  • period (15)
  • _rocperiod (1)
  • _movav (EMA)
  • sigperiod (9)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (True)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([0.0])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • trix:
  • signal:

TrueHigh

Defined by J. Welles Wilder, Jr. in 1978 in his book “New Concepts in Technical Trading Systems” for the ATR

Records the “true high” which is the maximum of today’s high and yesterday’s close

Formula:
  • truehigh = max(high, close_prev)
See:
Lines:
  • truehigh
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (True)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • truehigh:

TrueLow

Defined by J. Welles Wilder, Jr. in 1978 in his book “New Concepts in Technical Trading Systems” for the ATR

Records the “true low” which is the minimum of today’s low and yesterday’s close

Formula:
  • truelow = min(low, close_prev)
See:
Lines:
  • truelow
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (True)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • truelow:

TrueRange

Alias:
  • TR

Defined by J. Welles Wilder, Jr. in 1978 in his book New Concepts in Technical Trading Systems.

Formula:
  • max(high - low, abs(high - prev_close), abs(prev_close - low)

which can be simplified to

  • max(high, prev_close) - min(low, prev_close)
See:

The idea is to take the previous close into account to calculate the range if it yields a larger range than the daily range (High - Low)

Lines:
  • tr
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (True)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • tr:

TrueStrengthIndicator

Alias:
  • TSI

The True Strength Indicators was first introduced in Stocks & Commodities Magazine by its author William Blau. It measures momentum with a double exponential (default) of the prices.

It shows divergence if the extremes keep on growign but closing prices do not in the same manner (distance to the extremes grow)

Formula:
  • price_change = close - close(pchange periods ago)
  • sm1_simple = EMA(price_close_change, period1)
  • sm1_double = EMA(sm1_simple, period2)
  • sm2_simple = EMA(abs(price_close_change), period1)
  • sm2_double = EMA(sm2_simple, period2)
  • tsi = 100.0 * sm1_double / sm2_double
See:

Params

  • period1: the period for the 1st smoothing
  • period2: the period for the 2nd smoothing
  • pchange: the lookback period for the price change
  • _movav: the moving average to apply for the smoothing
Lines:
  • tsi
Params:
  • period1 (25)
  • period2 (13)
  • pchange (1)
  • _movav (EMA)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (True)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • tsi:

UltimateOscillator

Formula:

# Buying Pressure = Close - TrueLow BP = Close - Minimum(Low or Prior Close)

# TrueRange = TrueHigh - TrueLow TR = Maximum(High or Prior Close) - Minimum(Low or Prior Close)

Average7 = (7-period BP Sum) / (7-period TR Sum) Average14 = (14-period BP Sum) / (14-period TR Sum) Average28 = (28-period BP Sum) / (28-period TR Sum)

UO = 100 x [(4 x Average7)+(2 x Average14)+Average28]/(4+2+1)

See:

Lines:
  • uo
Params:
  • p1 (7)
  • p2 (14)
  • p3 (28)
  • upperband (70.0)
  • lowerband (30.0)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (True)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • uo:

UpDay

Defined by J. Welles Wilder, Jr. in 1978 in his book “New Concepts in Technical Trading Systems” for the RSI

Records days which have been “up”, i.e.: the close price has been higher than the day before.

Formula:
  • upday = max(close - close_prev, 0)
See:
Lines:
  • upday
Params:
  • period (1)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (True)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • upday:

UpDayBool

Defined by J. Welles Wilder, Jr. in 1978 in his book “New Concepts in Technical Trading Systems” for the RSI

Records days which have been “up”, i.e.: the close price has been higher than the day before.

Note:
  • This version returns a bool rather than the difference
Formula:
  • upday = close > close_prev
See:
Lines:
  • upday
Params:
  • period (1)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (True)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • upday:

UpMove

Defined by J. Welles Wilder, Jr. in 1978 in his book “New Concepts in Technical Trading Systems” as part of the Directional Move System to calculate Directional Indicators.

Positive if the given data has moved higher than the previous day

Formula:
  • upmove = data - data(-1)
See:
Lines:
  • upmove
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (True)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • upmove:

Vortex

See:
Lines:
  • vi_plus
  • vi_minus
Params:
  • period (14)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (True)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • vi_minus: - _name (-VI)
  • vi_plus: - _name (+VI)

WeightedAverage

Alias:
  • AverageWeighted

Calculates the weighted average of the given data over a period

The default weights (if none are provided) are linear to assigne more weight to the most recent data

The result will be multiplied by a given “coef”

Formula:
  • av = coef * sum(mul(data, period), weights)
See:
Lines:
  • av
Params:
  • period (1)
  • coef (1.0)
  • weights (())
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (True)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • av:

WeightedMovingAverage

Alias:
  • WMA, MovingAverageWeighted

A Moving Average which gives an arithmetic weighting to values with the newest having the more weight

Formula:
  • weights = range(1, period + 1)
  • coef = 2 / (period * (period + 1))
  • movav = coef * Sum(weight[i] * data[period - i] for i in range(period))
See also:
Lines:
  • wma
Params:
  • period (30)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (False)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • wma:

WeightedMovingAverageEnvelope

Alias:
  • WMAEnvelope, MovingAverageWeightedEnvelope

WeightedMovingAverage and envelope bands separated “perc” from it

Formula:
  • wma (from WeightedMovingAverage)
  • top = wma * (1 + perc)
  • bot = wma * (1 - perc)
See also:
Lines:
  • wma
  • top
  • bot
Params:
  • period (30)
  • perc (2.5)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (False)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • wma:
  • top: - _samecolor (True)
  • bot: - _samecolor (True)

WeightedMovingAverageOscillator

Alias:
  • WeightedMovingAverageOsc, WMAOscillator, WMAOsc, MovingAverageWeightedOscillator, MovingAverageWeightedOsc

Oscillation of a WeightedMovingAverage around its data

Lines:
  • wma
Params:
  • period (30)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (True)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • wma:
  • _0: - _name (osc)

WilliamsAD

By Larry Williams. It does cumulatively measure if the price is accumulating (upwards) or distributing (downwards) by using the concept of UpDays and DownDays.

Prices can go upwards but do so in a fashion that no longer shows accumulation because updays and downdays are canceling out each other, creating a divergence.

See: - http://www.metastock.com/Customer/Resources/TAAZ/?p=125 - http://ta.mql4.com/indicators/trends/williams_accumulation_distribution

Lines:
  • ad
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (True)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • ad:

WilliamsR

Developed by Larry Williams to show the relation of closing prices to the highest-lowest range of a given period.

Known as Williams %R (but % is not allowed in Python identifiers)

Formula:
  • num = highest_period - close
  • den = highestg_period - lowest_period
  • percR = (num / den) * -100.0
See:
Lines:
  • percR
Params:
  • period (14)
  • upperband (-20.0)
  • lowerband (-80.0)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (True)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname (Williams R%)
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • percR: - _name (R%)

ZeroLagExponentialMovingAverage

Alias:
  • ZLEMA, ZeroLagEma

The zero-lag exponential moving average (ZLEMA) is a variation of the EMA which adds a momentum term aiming to reduce lag in the average so as to track current prices more closely.

Formula:
  • lag = (period - 1) / 2
  • zlema = ema(2 * data - data(-lag))
See also:
Lines:
  • zlema
Params:
  • period (30)
  • _movav (EMA)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (False)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • zlema:

ZeroLagExponentialMovingAverageEnvelope

Alias:
  • ZLEMAEnvelope, ZeroLagEmaEnvelope

ZeroLagExponentialMovingAverage and envelope bands separated “perc” from it

Formula:
  • zlema (from ZeroLagExponentialMovingAverage)
  • top = zlema * (1 + perc)
  • bot = zlema * (1 - perc)
See also:
Lines:
  • zlema
  • top
  • bot
Params:
  • period (30)
  • _movav (EMA)
  • perc (2.5)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (False)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • zlema:
  • top: - _samecolor (True)
  • bot: - _samecolor (True)

ZeroLagExponentialMovingAverageOscillator

Alias:
  • ZeroLagExponentialMovingAverageOsc, ZLEMAOscillator, ZLEMAOsc, ZeroLagEmaOscillator, ZeroLagEmaOsc

Oscillation of a ZeroLagExponentialMovingAverage around its data

Lines:
  • zlema
Params:
  • period (30)
  • _movav (EMA)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (True)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • zlema:
  • _0: - _name (osc)

ZeroLagIndicator

Alias:
  • ZLIndicator, ZLInd, EC, ErrorCorrecting

By John Ehlers and Ric Way

The zero-lag indicator (ZLIndicator) is a variation of the EMA which modifies the EMA by trying to minimize the error (distance price - error correction) and thus reduce the lag

Formula:
  • EMA(data, period)

  • For each iteration calculate a best-error-correction of the ema (see the paper and/or the code) iterating over -bestgain -> +bestgain for the error correction factor (both incl.)

  • The default moving average is EMA, but can be changed with the parameter _movav

    Note

    the passed moving average must calculate alpha (and 1 - alpha) and make them available as attributes alpha and alpha1 in the instance

See also:
Lines:
  • ec
Params:
  • period (30)
  • gainlimit (50)
  • _movav (EMA)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (False)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • ec:

ZeroLagIndicatorEnvelope

Alias:
  • ZLIndicatorEnvelope, ZLIndEnvelope, ECEnvelope, ErrorCorrectingEnvelope

ZeroLagIndicator and envelope bands separated “perc” from it

Formula:
  • ec (from ZeroLagIndicator)
  • top = ec * (1 + perc)
  • bot = ec * (1 - perc)
See also:
Lines:
  • ec
  • top
  • bot
Params:
  • period (30)
  • gainlimit (50)
  • _movav (EMA)
  • perc (2.5)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (False)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • ec:
  • top: - _samecolor (True)
  • bot: - _samecolor (True)

ZeroLagIndicatorOscillator

Alias:
  • ZeroLagIndicatorOsc, ZLIndicatorOscillator, ZLIndicatorOsc, ZLIndOscillator, ZLIndOsc, ECOscillator, ECOsc, ErrorCorrectingOscillator, ErrorCorrectingOsc

Oscillation of a ZeroLagIndicator around its data

Lines:
  • ec
Params:
  • period (30)
  • gainlimit (50)
  • _movav (EMA)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (True)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • ec:
  • _0: - _name (osc)

haDelta

Alias:
  • haD

Heikin Ashi Delta. Defined by Dan Valcu in his book “Heikin-Ashi: How to Trade Without Candlestick Patterns ”.

This indicator measures difference between Heikin Ashi close and open of Heikin Ashi candles, the body of the candle.

To get signals add haDelta smoothed by 3 period moving average.

For correct use, the data for the indicator must have been previously passed by the Heikin Ahsi filter.

Formula:
  • haDelta = Heikin Ashi close - Heikin Ashi open
  • smoothed = movav(haDelta, period)
Lines:
  • haDelta
  • smoothed
Params:
  • period (3)
  • movav (SMA)
  • autoheikin (True)
PlotInfo:
  • plot (True)
  • legendloc (None)
  • plotmaster (None)
  • subplot (True)
  • plotvaluetags (True)
  • plotskip (False)
  • plotname ()
  • plotforce (False)
  • plotyhlines ([])
  • plothlines ([])
  • plotlinevalues (True)
  • plotabove (False)
  • plotymargin (0.0)
  • plotlinelabels (False)
  • plotyticks ([])
PlotLines:
  • smoothed: - color (grey) - _fill_gt ((0, u’green’)) - _fill_lt ((0, u’red’))
  • haDelta: - color (red)