backtrader-plotly 1.4.0.dev1

Library replacing original matlibplot used by backtrader

backtrader_plotly

Plot backtrader's result using plotly instead of the default matplotlib

This is an experimental package, and it is done by replacing original matplotlib method calls.

Installation

$ pip install backtrader-plotly==1.3.0

New Scheme Arguments

New scheme arguments are added to provide extra control

Name of Argument	Default Value	Description
decimal_places	5	It is used to control the number of decimal places of price shown on the plot. For instance, forex price usually consists of 5 decimal places.
max_legend_text_width	16	It is used to limit the legend text width to prevent it from occupying the page.

Usage

# import the package after installation
from backtrader_plotly.plotter import BacktraderPlotly
from backtrader_plotly.scheme import PlotScheme
import plotly.io

# do whatever you want with `backtrader`
import backtrader as bt

# for instance
cerebro = bt.Cerebro()

# after adding data and strategy
cerebro.run()

# define plot scheme with new additional scheme arguments
scheme = PlotScheme(decimal_places=5, max_legend_text_width=16)

# plot and save figures as `plotly` graph object
figs = cerebro.plot(BacktraderPlotly(show=True, scheme=scheme))
figs = [x for fig in figs for x in fig]  # flatten output
for fig in figs:
    plotly.io.to_html(fig, full_html=False)  # open html in the browser
    plotly.io.write_html(fig, file='plot.html')  # save the html file