investing

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 .

Can we display an asset name in https://pyportfolioopt.readthedocs.io/en/latest/_images/ef_plot.png ?

this is how Buy & Hold Return is calculated:

        c = data.Close.values
        s.loc['Buy & Hold Return [%]'] = (c[-1] - c[0]) / c[0] * 100  # long-only return

so it's calced use day one and the day last.

Expected Behavior

Buy & Hold Return is used for compare with strategy gain. Therefore, I guess they should started at same time, since the strategy get enough data to w

Code: GfLineChartModule

Resource: https://www.chartjs.org/docs/next/samples/animations/progressive-line.html