backtrader.indicators.dpo module

DPO Indicator Module - Detrended Price Oscillator.

This module provides the DPO (Detrended Price Oscillator) indicator developed by Joe DiNapoli to identify cycles by removing trend effects.

Classes:

DetrendedPriceOscillator: DPO indicator (alias: DPO).

Example

class MyStrategy(bt.Strategy):

def __init__(self):

self.dpo = bt.indicators.DPO(self.data, period=20)

def next(self):

if self.dpo[0] > 0:

self.buy()

class backtrader.indicators.dpo.DetrendedPriceOscillator

Bases: Indicator

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:

• http://en.wikipedia.org/wiki/Detrended_price_oscillator

alias = ('DPO',)

plotinfo = <backtrader.metabase.plotinfo_obj object>

__init__(*args, **kwargs)

next()

Calculate DPO for the current bar.

Formula: DPO = price - MA(lookback bars ago)

once(start, end)

Calculate DPO in runonce mode.

frompackages = ()

packages = ()