@dizzy0ny nop, you need to use data feed.

backtrader is a event-based backtesting, and based on yur short description you are using a vector based backtesting.

The second one mode is faster, the first one is more accurate, and you need to transform the logic from one method to another.

The use of talib is allow into the platform with data feed, so the process will be easy, laborious but easy.

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@albertoburchi There is no admin or access to admin for this forum except by the creator of Backtrader and he is not active at the moment. Just do what you can. Good luck.

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Thanks for this information!

Thanks for the help! That solved the problem.

@hanaan Hard to answer without the full code but it do not, at first sight, seems to me to be related to backtrader_plotting. I ran the example code from backtrader_plotting github without error. I guess you have tested your code with other plotting lib, including the one coming with backtrader ? If not, this may be a first step. If you did so and that this error appear only with backtrader_plotting, maybe you can ask @vbs or get some help on the topic he created :
https://community.backtrader.com/topic/813/bokeh-integration-interactive-webbrowser-plotting?page=1

@run-out ok, replying now seems to be working sometimes

@gstrader Correct. You need to have one dataframe for each symbol, add it to cerebro, and then repeat until all your desired symbols are entered and ready for the backtest.

I believe this error have been fixed in last version of backtrader, and that with this last version you do not need to downgrade matplotlib. How did you installed backtrader, and what version do you have ?
The cause of this error was in locator.py. If you want to see what was changed in the code to fix this issue, you can find it here :
https://github.com/mementum/backtrader/commit/61f0878a4e3616b62d3ad035acafd0ff25da1dec#diff-3fa930b595624ea86609bfa8fc4ab8a78bb62ef2bf029513ce38da8e39fe9b99

@vladisld Thank you for the suggestions. We finally managed to get more timeframes for forex. Also people can now create custom strategies on the platform. Here is the link to creating your own strategy without coding: https://bit.ly/3aQmJtM. More to come!