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Pandas TA

Pandas TA - A Technical Analysis Library in Python 3

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Example Chart

Pandas Technical Analysis (Pandas TA) is an easy to use library that leverages the Pandas package with more than 130 Indicators and Utility functions and more than 60 TA Lib Candlestick Patterns. Many commonly used indicators are included, such as: Candle Pattern(cdl_pattern), Simple Moving Average (sma) Moving Average Convergence Divergence (macd), Hull Exponential Moving Average (hma), Bollinger Bands (bbands), On-Balance Volume (obv), Aroon & Aroon Oscillator (aroon), Squeeze (squeeze) and many more.

Note: TA Lib must be installed to use all the Candlestick Patterns. pip install TA-Lib. If TA Lib is not installed, then only the builtin Candlestick Patterns will be available.


Table of contents


Features

  • Has 130+ indicators and utility functions.
    • BETA Also Pandas TA will run TA Lib's version, this includes TA Lib's 63 Chart Patterns.
  • Indicators in Python are tightly correlated with the de facto TA Lib if they share common indicators.
  • If TA Lib is also installed, TA Lib computations are enabled by default but can be disabled disabled per indicator by using the argument talib=False.
    • For instance to disable TA Lib calculation for stdev: ta.stdev(df["close"], length=30, talib=False).
  • NEW! Include External Custom Indicators independent of the builtin Pandas TA indicators. For more information, see import_dir documentation under /pandas_ta/custom.py.
  • Example Jupyter Notebook with vectorbt Portfolio Backtesting with Pandas TA's ta.tsignals method.
  • Have the need for speed? By using the DataFrame strategy method, you get multiprocessing for free! Conditions permitting.
  • Easily add prefixes or suffixes or both to columns names. Useful for Custom Chained Strategies.
  • Example Jupyter Notebooks under the examples directory, including how to create Custom Strategies using the new Strategy Class
  • Potential Data Leaks: dpo and ichimoku. See indicator list below for details. Set lookahead=False to disable.

Under Development

Pandas TA checks if the user has some common trading packages installed including but not limited to: TA Lib, Vector BT, YFinance ... Much of which is experimental and likely to break until it stabilizes more.

  • If TA Lib installed, existing indicators will eventually get a TA Lib version.
  • Easy Downloading of ohlcv data using yfinance. See help(ta.ticker) and help(ta.yf) and examples below.
  • Some Common Performance Metrics

Installation

Stable

The pip version is the last stable release. Version: 0.3.14b

$ pip install pandas_ta

Latest Version

Best choice! Version: 0.3.14b

  • Includes all fixes and updates between pypi and what is covered in this README.
$ pip install -U git+https://github.com/twopirllc/pandas-ta

Cutting Edge

This is the Development Version which could have bugs and other undesireable side effects. Use at own risk!

$ pip install -U git+https://github.com/twopirllc/pandas-ta.git@development

Quick Start

import pandas as pd
import pandas_ta as ta

df = pd.DataFrame() # Empty DataFrame

# Load data
df = pd.read_csv("path/to/symbol.csv", sep=",")
# OR if you have yfinance installed
df = df.ta.ticker("aapl")

# VWAP requires the DataFrame index to be a DatetimeIndex.
# Replace "datetime" with the appropriate column from your DataFrame
df.set_index(pd.DatetimeIndex(df["datetime"]), inplace=True)

# Calculate Returns and append to the df DataFrame
df.ta.log_return(cumulative=True, append=True)
df.ta.percent_return(cumulative=True, append=True)

# New Columns with results
df.columns

# Take a peek
df.tail()

# vv Continue Post Processing vv

Help

Some indicator arguments have been reordered for consistency. Use help(ta.indicator_name) for more information or make a Pull Request to improve documentation.

import pandas as pd
import pandas_ta as ta

# Create a DataFrame so 'ta' can be used.
df = pd.DataFrame()

# Help about this, 'ta', extension
help(df.ta)

# List of all indicators
df.ta.indicators()

# Help about an indicator such as bbands
help(ta.bbands)

Issues and Contributions

Thanks for using Pandas TA!

  • Comments and Feedback

    • Have you read this document?
    • Are you running the latest version?
      • $ pip install -U git+https://github.com/twopirllc/pandas-ta
    • Have you tried the Examples?
      • Did they help?
      • What is missing?
      • Could you help improve them?
    • Did you know you can easily build Custom Strategies with the Strategy Class?
    • Documentation could always be improved. Can you help contribute?
  • Bugs, Indicators or Feature Requests

    • First, search the Closed Issues before you Open a new Issue; it may have already been solved.
    • Please be as detailed as possible with reproducible code, links if any, applicable screenshots, errors, logs, and data samples. You will be asked again if you provide nothing.
      • You want a new indicator not currently listed.
      • You want an alternate version of an existing indicator.
      • The indicator does not match another website, library, broker platform, language, et al.
        • Do you have correlation analysis to back your claim?
        • Can you contribute?
    • You will be asked to fill out an Issue even if you email my personally.

Contributors

Thank you for your contributions!


Programming Conventions

Pandas TA has three primary "styles" of processing Technical Indicators for your use case and/or requirements. They are: Standard, DataFrame Extension, and the Pandas TA Strategy. Each with increasing levels of abstraction for ease of use. As you become more familiar with Pandas TA, the simplicity and speed of using a Pandas TA Strategy may become more apparent. Furthermore, you can create your own indicators through Chaining or Composition. Lastly, each indicator either returns a Series or a DataFrame in Uppercase Underscore format regardless of style.


Standard

You explicitly define the input columns and take care of the output.

  • sma10 = ta.sma(df["Close"], length=10)
    • Returns a Series with name: SMA_10
  • donchiandf = ta.donchian(df["HIGH"], df["low"], lower_length=10, upper_length=15)
    • Returns a DataFrame named DC_10_15 and column names: DCL_10_15, DCM_10_15, DCU_10_15
  • ema10_ohlc4 = ta.ema(ta.ohlc4(df["Open"], df["High"], df["Low"], df["Close"]), length=10)
    • Chaining indicators is possible but you have to be explicit.
    • Since it returns a Series named EMA_10. If needed, you may need to uniquely name it.

Pandas TA DataFrame Extension

Calling df.ta will automatically lowercase OHLCVA to ohlcva: open, high, low, close, volume, adj_close. By default, df.ta will use the ohlcva for the indicator arguments removing the need to specify input columns directly.

  • sma10 = df.ta.sma(length=10)
    • Returns a Series with name: SMA_10
  • ema10_ohlc4 = df.ta.ema(close=df.ta.ohlc4(), length=10, suffix="OHLC4")
    • Returns a Series with name: EMA_10_OHLC4
    • Chaining Indicators require specifying the input like: close=df.ta.ohlc4().
  • donchiandf = df.ta.donchian(lower_length=10, upper_length=15)
    • Returns a DataFrame named DC_10_15 and column names: DCL_10_15, DCM_10_15, DCU_10_15

Same as the last three examples, but appending the results directly to the DataFrame df.

  • df.ta.sma(length=10, append=True)
    • Appends to df column name: SMA_10.
  • df.ta.ema(close=df.ta.ohlc4(append=True), length=10, suffix="OHLC4", append=True)
    • Chaining Indicators require specifying the input like: close=df.ta.ohlc4().
  • df.ta.donchian(lower_length=10, upper_length=15, append=True)
    • Appends to df with column names: DCL_10_15, DCM_10_15, DCU_10_15.

Pandas TA Strategy

A Pandas TA Strategy is a named group of indicators to be run by the strategy method. All Strategies use mulitprocessing except when using the col_names parameter (see below). There are different types of Strategies listed in the following section.


Here are the previous Styles implemented using a Strategy Class:

# (1) Create the Strategy
MyStrategy = ta.Strategy(
    name="DCSMA10",
    ta=[
        {"kind": "ohlc4"},
        {"kind": "sma", "length": 10},
        {"kind": "donchian", "lower_length": 10, "upper_length": 15},
        {"kind": "ema", "close": "OHLC4", "length": 10, "suffix": "OHLC4"},
    ]
)

# (2) Run the Strategy
df.ta.strategy(MyStrategy, **kwargs)



Pandas TA Strategies

The Strategy Class is a simple way to name and group your favorite TA Indicators by using a Data Class. Pandas TA comes with two prebuilt basic Strategies to help you get started: AllStrategy and CommonStrategy. A Strategy can be as simple as the CommonStrategy or as complex as needed using Composition/Chaining.

  • When using the strategy method, all indicators will be automatically appended to the DataFrame df.
  • You are using a Chained Strategy when you have the output of one indicator as input into one or more indicators in the same Strategy.
  • Note: Use the 'prefix' and/or 'suffix' keywords to distinguish the composed indicator from it's default Series.

See the Pandas TA Strategy Examples Notebook for examples including Indicator Composition/Chaining.

Strategy Requirements

  • name: Some short memorable string. Note: Case-insensitive "All" is reserved.
  • ta: A list of dicts containing keyword arguments to identify the indicator and the indicator's arguments
  • Note: A Strategy will fail when consumed by Pandas TA if there is no {"kind": "indicator name"} attribute. Remember to check your spelling.

Optional Parameters

  • description: A more detailed description of what the Strategy tries to capture. Default: None
  • created: At datetime string of when it was created. Default: Automatically generated.

Types of Strategies

Builtin

# Running the Builtin CommonStrategy as mentioned above
df.ta.strategy(ta.CommonStrategy)

# The Default Strategy is the ta.AllStrategy. The following are equivalent:
df.ta.strategy()
df.ta.strategy("All")
df.ta.strategy(ta.AllStrategy)

Categorical

# List of indicator categories
df.ta.categories

# Running a Categorical Strategy only requires the Category name
df.ta.strategy("Momentum") # Default values for all Momentum indicators
df.ta.strategy("overlap", length=42) # Override all Overlap 'length' attributes

Custom

# Create your own Custom Strategy
CustomStrategy = ta.Strategy(
    name="Momo and Volatility",
    description="SMA 50,200, BBANDS, RSI, MACD and Volume SMA 20",
    ta=[
        {"kind": "sma", "length": 50},
        {"kind": "sma", "length": 200},
        {"kind": "bbands", "length": 20},
        {"kind": "rsi"},
        {"kind": "macd", "fast": 8, "slow": 21},
        {"kind": "sma", "close": "volume", "length": 20, "prefix": "VOLUME"},
    ]
)
# To run your "Custom Strategy"
df.ta.strategy(CustomStrategy)

Multiprocessing

The Pandas TA strategy method utilizes multiprocessing for bulk indicator processing of all Strategy types with ONE EXCEPTION! When using the col_names parameter to rename resultant column(s), the indicators in ta array will be ran in order.

# VWAP requires the DataFrame index to be a DatetimeIndex.
# * Replace "datetime" with the appropriate column from your DataFrame
df.set_index(pd.DatetimeIndex(df["datetime"]), inplace=True)

# Runs and appends all indicators to the current DataFrame by default
# The resultant DataFrame will be large.
df.ta.strategy()
# Or the string "all"
df.ta.strategy("all")
# Or the ta.AllStrategy
df.ta.strategy(ta.AllStrategy)

# Use verbose if you want to make sure it is running.
df.ta.strategy(verbose=True)

# Use timed if you want to see how long it takes to run.
df.ta.strategy(timed=True)

# Choose the number of cores to use. Default is all available cores.
# For no multiprocessing, set this value to 0.
df.ta.cores = 4

# Maybe you do not want certain indicators.
# Just exclude (a list of) them.
df.ta.strategy(exclude=["bop", "mom", "percent_return", "wcp", "pvi"], verbose=True)

# Perhaps you want to use different values for indicators.
# This will run ALL indicators that have fast or slow as parameters.
# Check your results and exclude as necessary.
df.ta.strategy(fast=10, slow=50, verbose=True)

# Sanity check. Make sure all the columns are there
df.columns

Custom Strategy without Multiprocessing

Remember These will not be utilizing multiprocessing

NonMPStrategy = ta.Strategy(
    name="EMAs, BBs, and MACD",
    description="Non Multiprocessing Strategy by rename Columns",
    ta=[
        {"kind": "ema", "length": 8},
        {"kind": "ema", "length": 21},
        {"kind": "bbands", "length": 20, "col_names": ("BBL", "BBM", "BBU")},
        {"kind": "macd", "fast": 8, "slow": 21, "col_names": ("MACD", "MACD_H", "MACD_S")}
    ]
)
# Run it
df.ta.strategy(NonMPStrategy)



DataFrame Properties

adjusted

# Set ta to default to an adjusted column, 'adj_close', overriding default 'close'.
df.ta.adjusted = "adj_close"
df.ta.sma(length=10, append=True)

# To reset back to 'close', set adjusted back to None.
df.ta.adjusted = None

categories

# List of Pandas TA categories.
df.ta.categories

cores

# Set the number of cores to use for strategy multiprocessing
# Defaults to the number of cpus you have.
df.ta.cores = 4

# Set the number of cores to 0 for no multiprocessing.
df.ta.cores = 0

# Returns the number of cores you set or your default number of cpus.
df.ta.cores

datetime_ordered

# The 'datetime_ordered' property returns True if the DataFrame
# index is of Pandas datetime64 and df.index[0] < df.index[-1].
# Otherwise it returns False.
df.ta.datetime_ordered

exchange

# Sets the Exchange to use when calculating the last_run property. Default: "NYSE"
df.ta.exchange

# Set the Exchange to use.
# Available Exchanges: "ASX", "BMF", "DIFX", "FWB", "HKE", "JSE", "LSE", "NSE", "NYSE", "NZSX", "RTS", "SGX", "SSE", "TSE", "TSX"
df.ta.exchange = "LSE"

last_run

# Returns the time Pandas TA was last run as a string.
df.ta.last_run

reverse

# The 'reverse' is a helper property that returns the DataFrame
# in reverse order.
df.ta.reverse

prefix & suffix

# Applying a prefix to the name of an indicator.
prehl2 = df.ta.hl2(prefix="pre")
print(prehl2.name)  # "pre_HL2"

# Applying a suffix to the name of an indicator.
endhl2 = df.ta.hl2(suffix="post")
print(endhl2.name)  # "HL2_post"

# Applying a prefix and suffix to the name of an indicator.
bothhl2 = df.ta.hl2(prefix="pre", suffix="post")
print(bothhl2.name)  # "pre_HL2_post"

time_range

# Returns the time range of the DataFrame as a float.
# By default, it returns the time in "years"
df.ta.time_range

# Available time_ranges include: "years", "months", "weeks", "days", "hours", "minutes". "seconds"
df.ta.time_range = "days"
df.ta.time_range # prints DataFrame time in "days" as float

to_utc

# Sets the DataFrame index to UTC format.
df.ta.to_utc



DataFrame Methods

constants

import numpy as np

# Add constant '1' to the DataFrame
df.ta.constants(True, [1])
# Remove constant '1' to the DataFrame
df.ta.constants(False, [1])

# Adding constants for charting
import numpy as np
chart_lines = np.append(np.arange(-4, 5, 1), np.arange(-100, 110, 10))
df.ta.constants(True, chart_lines)
# Removing some constants from the DataFrame
df.ta.constants(False, np.array([-60, -40, 40, 60]))

indicators

# Prints the indicators and utility functions
df.ta.indicators()

# Returns a list of indicators and utility functions
ind_list = df.ta.indicators(as_list=True)

# Prints the indicators and utility functions that are not in the excluded list
df.ta.indicators(exclude=["cg", "pgo", "ui"])
# Returns a list of the indicators and utility functions that are not in the excluded list
smaller_list = df.ta.indicators(exclude=["cg", "pgo", "ui"], as_list=True)

ticker

# Download Chart history using yfinance. (pip install yfinance) https://github.com/ranaroussi/yfinance
# It uses the same keyword arguments as yfinance (excluding start and end)
df = df.ta.ticker("aapl") # Default ticker is "SPY"

# Period is used instead of start/end
# Valid periods: 1d,5d,1mo,3mo,6mo,1y,2y,5y,10y,ytd,max
# Default: "max"
df = df.ta.ticker("aapl", period="1y") # Gets this past year

# History by Interval by interval (including intraday if period < 60 days)
# Valid intervals: 1m,2m,5m,15m,30m,60m,90m,1h,1d,5d,1wk,1mo,3mo
# Default: "1d"
df = df.ta.ticker("aapl", period="1y", interval="1wk") # Gets this past year in weeks
df = df.ta.ticker("aapl", period="1mo", interval="1h") # Gets this past month in hours

# BUT WAIT!! THERE'S MORE!!
help(ta.yf)



Indicators (by Category)

Candles (64)

Patterns that are not bold, require TA-Lib to be installed: pip install TA-Lib

  • 2crows
  • 3blackcrows
  • 3inside
  • 3linestrike
  • 3outside
  • 3starsinsouth
  • 3whitesoldiers
  • abandonedbaby
  • advanceblock
  • belthold
  • breakaway
  • closingmarubozu
  • concealbabyswall
  • counterattack
  • darkcloudcover
  • doji
  • dojistar
  • dragonflydoji
  • engulfing
  • eveningdojistar
  • eveningstar
  • gapsidesidewhite
  • gravestonedoji
  • hammer
  • hangingman
  • harami
  • haramicross
  • highwave
  • hikkake
  • hikkakemod
  • homingpigeon
  • identical3crows
  • inneck
  • inside
  • invertedhammer
  • kicking
  • kickingbylength
  • ladderbottom
  • longleggeddoji
  • longline
  • marubozu
  • matchinglow
  • mathold
  • morningdojistar
  • morningstar
  • onneck
  • piercing
  • rickshawman
  • risefall3methods
  • separatinglines
  • shootingstar
  • shortline
  • spinningtop
  • stalledpattern
  • sticksandwich
  • takuri
  • tasukigap
  • thrusting
  • tristar
  • unique3river
  • upsidegap2crows
  • xsidegap3methods
  • Heikin-Ashi: ha
  • Z Score: cdl_z
# Get all candle patterns (This is the default behaviour)
df = df.ta.cdl_pattern(name="all")

# Get only one pattern
df = df.ta.cdl_pattern(name="doji")

# Get some patterns
df = df.ta.cdl_pattern(name=["doji", "inside"])

Cycles (1)

  • Even Better Sinewave: ebsw

Momentum (41)

  • Awesome Oscillator: ao
  • Absolute Price Oscillator: apo
  • Bias: bias
  • Balance of Power: bop
  • BRAR: brar
  • Commodity Channel Index: cci
  • Chande Forecast Oscillator: cfo
  • Center of Gravity: cg
  • Chande Momentum Oscillator: cmo
  • Coppock Curve: coppock
  • Correlation Trend Indicator: cti
    • A wrapper for ta.linreg(series, r=True)
  • Directional Movement: dm
  • Efficiency Ratio: er
  • Elder Ray Index: eri
  • Fisher Transform: fisher
  • Inertia: inertia
  • KDJ: kdj
  • KST Oscillator: kst
  • Moving Average Convergence Divergence: macd
  • Momentum: mom
  • Pretty Good Oscillator: pgo
  • Percentage Price Oscillator: ppo
  • Psychological Line: psl
  • Percentage Volume Oscillator: pvo
  • Quantitative Qualitative Estimation: qqe
  • Rate of Change: roc
  • Relative Strength Index: rsi
  • Relative Strength Xtra: rsx
  • Relative Vigor Index: rvgi
  • Schaff Trend Cycle: stc
  • Slope: slope
  • SMI Ergodic smi
  • Squeeze: squeeze
    • Default is John Carter's. Enable Lazybear's with lazybear=True
  • Squeeze Pro: squeeze_pro
  • Stochastic Oscillator: stoch
  • Stochastic RSI: stochrsi
  • TD Sequential: td_seq
    • Excluded from df.ta.strategy().
  • Trix: trix
  • True strength index: tsi
  • Ultimate Oscillator: uo
  • Williams %R: willr
Moving Average Convergence Divergence (MACD)
Example MACD

Overlap (33)

  • Arnaud Legoux Moving Average: alma
  • Double Exponential Moving Average: dema
  • Exponential Moving Average: ema
  • Fibonacci's Weighted Moving Average: fwma
  • Gann High-Low Activator: hilo
  • High-Low Average: hl2
  • High-Low-Close Average: hlc3
    • Commonly known as 'Typical Price' in Technical Analysis literature
  • Hull Exponential Moving Average: hma
  • Holt-Winter Moving Average: hwma
  • Ichimoku Kinkō Hyō: ichimoku
    • Returns two DataFrames. For more information: help(ta.ichimoku).
    • lookahead=False drops the Chikou Span Column to prevent potential data leak.
  • Jurik Moving Average: jma
  • Kaufman's Adaptive Moving Average: kama
  • Linear Regression: linreg
  • McGinley Dynamic: mcgd
  • Midpoint: midpoint
  • Midprice: midprice
  • Open-High-Low-Close Average: ohlc4
  • Pascal's Weighted Moving Average: pwma
  • WildeR's Moving Average: rma
  • Sine Weighted Moving Average: sinwma
  • Simple Moving Average: sma
  • Ehler's Super Smoother Filter: ssf
  • Supertrend: supertrend
  • Symmetric Weighted Moving Average: swma
  • T3 Moving Average: t3
  • Triple Exponential Moving Average: tema
  • Triangular Moving Average: trima
  • Variable Index Dynamic Average: vidya
  • Volume Weighted Average Price: vwap
    • Requires the DataFrame index to be a DatetimeIndex
  • Volume Weighted Moving Average: vwma
  • Weighted Closing Price: wcp
  • Weighted Moving Average: wma
  • Zero Lag Moving Average: zlma
Simple Moving Averages (SMA) and Bollinger Bands (BBANDS)
Example Chart

Performance (3)

Use parameter: cumulative=True for cumulative results.

  • Draw Down: drawdown
  • Log Return: log_return
  • Percent Return: percent_return
Percent Return (Cumulative) with Simple Moving Average (SMA)
Example Cumulative Percent Return

Statistics (11)

  • Entropy: entropy
  • Kurtosis: kurtosis
  • Mean Absolute Deviation: mad
  • Median: median
  • Quantile: quantile
  • Skew: skew
  • Standard Deviation: stdev
  • Think or Swim Standard Deviation All: tos_stdevall
  • Variance: variance
  • Z Score: zscore
Z Score
Example Z Score

Trend (18)

  • Average Directional Movement Index: adx
    • Also includes dmp and dmn in the resultant DataFrame.
  • Archer Moving Averages Trends: amat
  • Aroon & Aroon Oscillator: aroon
  • Choppiness Index: chop
  • Chande Kroll Stop: cksp
  • Decay: decay
    • Formally: linear_decay
  • Decreasing: decreasing
  • Detrended Price Oscillator: dpo
    • Set lookahead=False to disable centering and remove potential data leak.
  • Increasing: increasing
  • Long Run: long_run
  • Parabolic Stop and Reverse: psar
  • Q Stick: qstick
  • Short Run: short_run
  • Trend Signals: tsignals
  • TTM Trend: ttm_trend
  • Vertical Horizontal Filter: vhf
  • Vortex: vortex
  • Cross Signals: xsignals
Average Directional Movement Index (ADX)
Example ADX

Utility (5)

  • Above: above
  • Above Value: above_value
  • Below: below
  • Below Value: below_value
  • Cross: cross

Volatility (14)

  • Aberration: aberration
  • Acceleration Bands: accbands
  • Average True Range: atr
  • Bollinger Bands: bbands
  • Donchian Channel: donchian
  • Holt-Winter Channel: hwc
  • Keltner Channel: kc
  • Mass Index: massi
  • Normalized Average True Range: natr
  • Price Distance: pdist
  • Relative Volatility Index: rvi
  • Elder's Thermometer: thermo
  • True Range: true_range
  • Ulcer Index: ui
Average True Range (ATR)
Example ATR

Volume (15)

  • Accumulation/Distribution Index: ad
  • Accumulation/Distribution Oscillator: adosc
  • Archer On-Balance Volume: aobv
  • Chaikin Money Flow: cmf
  • Elder's Force Index: efi
  • Ease of Movement: eom
  • Klinger Volume Oscillator: kvo
  • Money Flow Index: mfi
  • Negative Volume Index: nvi
  • On-Balance Volume: obv
  • Positive Volume Index: pvi
  • Price-Volume: pvol
  • Price Volume Rank: pvr
  • Price Volume Trend: pvt
  • Volume Profile: vp
On-Balance Volume (OBV)
Example OBV



Performance Metrics   BETA

Performance Metrics are a new addition to the package and consequentially are likely unreliable. Use at your own risk. These metrics return a float and are not part of the DataFrame Extension. They are called the Standard way. For Example:

import pandas_ta as ta
result = ta.cagr(df.close)

Available Metrics

  • Compounded Annual Growth Rate: cagr
  • Calmar Ratio: calmar_ratio
  • Downside Deviation: downside_deviation
  • Jensen's Alpha: jensens_alpha
  • Log Max Drawdown: log_max_drawdown
  • Max Drawdown: max_drawdown
  • Pure Profit Score: pure_profit_score
  • Sharpe Ratio: sharpe_ratio
  • Sortino Ratio: sortino_ratio
  • Volatility: volatility

Backtesting with vectorbt

For easier integration with vectorbt's Portfolio from_signals method, the ta.trend_return method has been replaced with ta.tsignals method to simplify the generation of trading signals. For a comprehensive example, see the example Jupyter Notebook VectorBT Backtest with Pandas TA in the examples directory.


Brief example

  • See the vectorbt website more options and examples.
import pandas as pd
import pandas_ta as ta
import vectorbt as vbt

df = pd.DataFrame().ta.ticker("AAPL") # requires 'yfinance' installed

# Create the "Golden Cross" 
df["GC"] = df.ta.sma(50, append=True) > df.ta.sma(200, append=True)

# Create boolean Signals(TS_Entries, TS_Exits) for vectorbt
golden = df.ta.tsignals(df.GC, asbool=True, append=True)

# Sanity Check (Ensure data exists)
print(df)

# Create the Signals Portfolio
pf = vbt.Portfolio.from_signals(df.close, entries=golden.TS_Entries, exits=golden.TS_Exits, freq="D", init_cash=100_000, fees=0.0025, slippage=0.0025)

# Print Portfolio Stats and Return Stats
print(pf.stats())
print(pf.returns_stats())



Changes

General

  • A Strategy Class to help name and group your favorite indicators.
  • If a TA Lib is already installed, Pandas TA will run TA Lib's version. (BETA)
  • Some indicators have had their mamode kwarg updated with more moving average choices with the Moving Average Utility function ta.ma(). For simplicity, all choices are single source moving averages. This is primarily an internal utility used by indicators that have a mamode kwarg. This includes indicators: accbands, amat, aobv, atr, bbands, bias, efi, hilo, kc, natr, qqe, rvi, and thermo; the default mamode parameters have not changed. However, ta.ma() can be used by the user as well if needed. For more information: help(ta.ma)
    • Moving Average Choices: dema, ema, fwma, hma, linreg, midpoint, pwma, rma, sinwma, sma, swma, t3, tema, trima, vidya, wma, zlma.
  • An experimental and independent Watchlist Class located in the Examples Directory that can be used in conjunction with the new Strategy Class.
  • Linear Regression (linear_regression) is a new utility method for Simple Linear Regression using Numpy or Scikit Learn's implementation.
  • Added utility/convience function, to_utc, to convert the DataFrame index to UTC. See: help(ta.to_utc) Now as a Pandas TA DataFrame Property to easily convert the DataFrame index to UTC.

Breaking / Depreciated Indicators

  • Trend Return (trend_return) has been removed and replaced with tsignals. When given a trend Series like close > sma(close, 50) it returns the Trend, Trade Entries and Trade Exits of that trend to make it compatible with vectorbt by setting asbool=True to get boolean Trade Entries and Exits. See help(ta.tsignals)

New Indicators

  • Arnaud Legoux Moving Average (alma) uses the curve of the Normal (Gauss) distribution to allow regulating the smoothness and high sensitivity of the indicator. See: help(ta.alma) trading account, or fund. See help(ta.drawdown)
  • Candle Patterns (cdl_pattern) If TA Lib is installed, then all those Candle Patterns are available. See the list and examples above on how to call the patterns. See help(ta.cdl_pattern)
  • Candle Z Score (cdl_z) normalizes OHLC Candles with a rolling Z Score. See help(ta.cdl_z)
  • Correlation Trend Indicator (cti) is an oscillator created by John Ehler in 2020. See help(ta.cti)
  • Cross Signals (xsignals) was created by Kevin Johnson. It is a wrapper of Trade Signals that returns Trends, Trades, Entries and Exits. Cross Signals are commonly used for bbands, rsi, zscore crossing some value either above or below two values at different times. See help(ta.xsignals)
  • Directional Movement (dm) developed by J. Welles Wilder in 1978 attempts to determine which direction the price of an asset is moving. See help(ta.dm)
  • Even Better Sinewave (ebsw) measures market cycles and uses a low pass filter to remove noise. See: help(ta.ebsw)
  • Jurik Moving Average (jma) attempts to eliminate noise to see the "true" underlying activity.. See: help(ta.jma)
  • Klinger Volume Oscillator (kvo) was developed by Stephen J. Klinger. It is designed to predict price reversals in a market by comparing volume to price.. See help(ta.kvo)
  • Schaff Trend Cycle (stc) is an evolution of the popular MACD incorportating two cascaded stochastic calculations with additional smoothing. See help(ta.stc)
  • Squeeze Pro (squeeze_pro) is an extended version of "TTM Squeeze" from John Carter. See help(ta.squeeze_pro)
  • Tom DeMark's Sequential (td_seq) attempts to identify a price point where an uptrend or a downtrend exhausts itself and reverses. Currently exlcuded from df.ta.strategy() for performance reasons. See help(ta.td_seq)
  • Think or Swim Standard Deviation All (tos_stdevall) indicator which returns the standard deviation of data for the entire plot or for the interval of the last bars defined by the length parameter. See help(ta.tos_stdevall)
  • Vertical Horizontal Filter (vhf) was created by Adam White to identify trending and ranging markets.. See help(ta.vhf)

Updated Indicators

  • Acceleration Bands (accbands) Argument mamode renamed to mode. See help(ta.accbands).
  • ADX (adx): Added mamode with default "RMA" and with the same mamode options as TradingView. New argument lensig so it behaves like TradingView's builtin ADX indicator. See help(ta.adx).
  • Archer Moving Averages Trends (amat): Added drift argument and more descriptive column names.
  • Average True Range (atr): The default mamode is now "RMA" and with the same mamode options as TradingView. See help(ta.atr).
  • Bollinger Bands (bbands): New argument ddoff to control the Degrees of Freedom. Also included BB Percent (BBP) as the final column. Default is 0. See help(ta.bbands).
  • Choppiness Index (chop): New argument ln to use Natural Logarithm (True) instead of the Standard Logarithm (False). Default is False. See help(ta.chop).
  • Chande Kroll Stop (cksp): Added tvmode with default True. When tvmode=False, cksp implements “The New Technical Trader” with default values. See help(ta.cksp).
  • Chande Momentum Oscillator (cmo): New argument talib will use TA Lib's version and if TA Lib is installed. Default is True. See help(ta.cmo).
  • Decreasing (decreasing): New argument strict checks if the series is continuously decreasing over period length with a faster calculation. Default: False. The percent argument has also been added with default None. See help(ta.decreasing).
  • Increasing (increasing): New argument strict checks if the series is continuously increasing over period length with a faster calculation. Default: False. The percent argument has also been added with default None. See help(ta.increasing).
  • Klinger Volume Oscillator (kvo): Implements TradingView's Klinger Volume Oscillator version. See help(ta.kvo).
  • Linear Regression (linreg): Checks numpy's version to determine whether to utilize the as_strided method or the newer sliding_window_view method. This should resolve Issues with Google Colab and it's delayed dependency updates as well as TensorFlow's dependencies as discussed in Issues #285 and #329.
  • Moving Average Convergence Divergence (macd): New argument asmode enables AS version of MACD. Default is False. See help(ta.macd).
  • Parabolic Stop and Reverse (psar): Bug fix and adjustment to match TradingView's sar. New argument af0 to initialize the Acceleration Factor. See help(ta.psar).
  • Percentage Price Oscillator (ppo): Included new argument mamode as an option. Default is sma to match TA Lib. See help(ta.ppo).
  • True Strength Index (tsi): Added signal with default 13 and Signal MA Mode mamode with default ema as arguments. See help(ta.tsi).
  • Volume Profile (vp): Calculation improvements. See Pull Request #320 See help(ta.vp).
  • Volume Weighted Moving Average (vwma): Fixed bug in DataFrame Extension call. See help(ta.vwma).
  • Volume Weighted Average Price (vwap): Added a new parameter called anchor. Default: "D" for "Daily". See Timeseries Offset Aliases for additional options. Requires the DataFrame index to be a DatetimeIndex. See help(ta.vwap).
  • Volume Weighted Moving Average (vwma): Fixed bug in DataFrame Extension call. See help(ta.vwma).
  • Z Score (zscore): Changed return column name from Z_length to ZS_length. See help(ta.zscore).

Sources

Original TA-LIB | TradingView | Sierra Chart | MQL5 | FM Labs | Pro Real Code | User 42


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