[New Feature/Enhancement]: Allow to Choose NumPy/pandas for Group Aggregated Values

[ZenithClown]

What is the New Feature/Enhancement?

To calculate percentile or quantile the module currently uses the pandas.Series.quantile method which works with the limited optional parameters {‘linear’, ‘lower’, ‘higher’, ‘midpoint’, ‘nearest’} (as on 20.04.2024). However, we can also choose np.quantile or np.percentile. This requires the following tweaks:

• define argument to control module selection,
• set the default behavior to pandas.Series.quantile method,
• when choosing numpy set the default dropna = True as in pd.quantile,
• allow to choose to drop null, or calculate using null with argument,
• readability by updating documentations.

Code of Conduct

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[ZenithClown]

Added arguments basemod and dropna to control the behavior.