cerebro.plot on Colab not displaying chart

Jafsa

Hi,

I searched the forums but couldn't find a solution.
I'm using Google Colab. Build a strategy. Works.
I now try to use cerebro.plot() but cannot see the chart, only get [[<Figure size 432x288 with 5 Axes>]]

Any help would be appreciated.

run-out

Try putting plt.show() after cerebro.plot()

jf

I was struggling with the same problem, this is some kind of workaround...

from google.colab import files
cerebro.plot()[0][0].savefig('samplefigure.png', dpi=300)
files.download('samplefigure.png')

Jafsa

@run-out
Didn't work

run-out

OK, it was a shot in the dark.

Jafsa

Does this means you can't plot with backtrader on colab? That is a pity.

run-out

@Jafsa said in cerebro.plot on Colab not displaying chart:

Does this means you can't plot with backtrader on colab? That is a pity.

No it means I haven't used Colab with backtrader. I've seen discussions online regarding this issue, it might have been solved somewhere.

run-out

@Jafsa said in cerebro.plot on Colab not displaying chart:

Does this means you can't plot with backtrader on colab? That is a pity.

Also have a look at this plotting library. Might solve your problem.

ab_trader

@Jafsa said in cerebro.plot on Colab not displaying chart:

Does this means you can't plot with backtrader on colab? That is a pity.

Does this work?
https://community.backtrader.com/post/13058

Jafsa

@ab_trader Thank you for the link, but I'm not sure it is related to my issue.

takeru

Now I can see plot as image.

https://colab.research.google.com/drive/1VmCv3J6_nZRDFsQ_yoPTvGNCpaswvbN_?usp=sharing

kenorb

@jf Similar workaround to display in Colab:

from google.colab import files
from IPython.display import Image
chart_file = 'result.png'
cerebro.plot()[0][0].savefig(chart_file, dpi=300)
Image(open(chart_file, 'rb').read())

kenorb

Possible fix: https://github.com/mementum/backtrader/pull/423