Describe the enhancement

Hi, just registered on github for a quick suggestion. I think it would be great to have an option to set a custom fee when running trade with dry-run enabled in the JSON config.

As for the parameter dry_run_wallet, I'd love to be able to set an option like dry_run_fee.
My strategy is based on small profits, and while I can set the fee in backtesting/hyper

According to @rspadim, functions in entropy.py could use numpy array instead of strings, as it's better to numba.

Guide on how to implement this is available in the comments in PR #311 .

Hey,

First of all thank you for the hard work put into this, it's a really awesome project that I still learn how to use.
I'm not that proficient in using python so that is why I'll put my suggestion here. I have used python more for machine learning stuff and there the option of searching hyperparameters was also between grid and random search. However, I found that using bayesian optimizati