DOC: Series.mask() should point to Series.where() and vice versa

[teoguso]

In the docs page of pandas.Series.mask(), the See also cell that should point to related methods (at least in my understanding) is linking to pandas.DataFrame.where() instead of pandas.Series.where()
(See here for the latest doc page).
The same issue appears in the doc page of pandas.Series.where() where pandas.DataFrame.mask() is linked.

Following the logic of the doc pages of pandas.DataFrame.where()/.mask(), where the two methods link each other, I assume that pandas.Series.mask() should link to pandas.Series.where() and vice versa.

I offer to take care of this small issue if it is substantial.

This is still there in 0.24.devX at the time of writing. 0.23.3 is the current stable release.

[jschendel]

Thanks! I'd have the "See Also" sections for the four methods in question point to all three of the other methods, e.g. the "See Also" section for Series.where should point to Series.mask, DataFrame.where, and DataFrame.mask (likewise for the other variations).

[Dr-Irv]

This should be straightforward. Work was done in #21840 but that was never finished, so it should be a good first issue for someone.

[IsaacG]

take