Pandas: Add cut as a Series method

[JoshuaC3]

Problem description

It would be to have cut as a series method so that we can method chain. Currently, we must use pd.cut, for example,

filled_series = df.some_series.fillna(0)
pd.cut(filled_series, 10).mean()

it would be nice to do,

df.some_series.fillna(0).cut(10).mean()

This would also help hugely with tab completion.

Expected Output

To have a tab-completed series method for cut.

[mroeschke]

I'd be -0 on adding cut as a method. cut can currently return an ndarray, tuple, Categorical, or Series which is not conducive to chaining which would be an advantage of having cut as a method.

[JoshuaC3]

@mroeschke cut, the pandas function, behaves like this, but could cut, the series method, not just have a subset of behaviours. If you're using the cut method on a series you aren't likely bothered about it returning anything other than a series.

If I'm reading the docs correctly, it is always series in - series out, given retbins is False (which is the default).

What are your thoughts on this?

[R4HMATT]

take