DOC: DataFrame.groupy.agg with a list of tuples

[tdpetrou]

Code Sample, a copy-pastable example if possible

>>> df = pd.DataFrame({'key' : ['a', 'a', 'b', 'b', 'a'],
                       'data' : np.random.randn(5)})

>>> df.groupby('key')['data'].agg([('foo', 'mean')])
          foo
key          
a   -0.944872
b    0.893212

Problem description

I know its deprecated to rename columns with a dictionary of dictionaries in a groupby but a list of tuples also renames columns.

This behavior is not found in the docs. I accidentally discovered this a while back and then saw it again in Python for Data Analysis.

[rhshadrach]

Confirmed this is tested in test_multiple_functions_tuples_and_non_tuples. The documentation could go in https://pandas.pydata.org/pandas-docs/dev/user_guide/groupby.html#named-aggregation

[Ememobong28]

take

[jahn96]

@Ememobong28 are you still working on this?

[Ememobong28]

No im not

…

On Thu, Jul 18, 2024 at 12:38 PM Jay Ahn ***@***.***> wrote: @Ememobong28 <https://github.com/Ememobong28> are you still working on this? — Reply to this email directly, view it on GitHub <#18220 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AUGCC7ZGJ57UJHJKYDZLQ3TZNAKR7AVCNFSM6AAAAABLDJZ2FKVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZDEMZXGM4DOMZWHA> . You are receiving this because you were mentioned.Message ID: ***@***.***>

[jahn96]

take

[jahn96]

No im not
…
On Thu, Jul 18, 2024 at 12:38 PM Jay Ahn @.> wrote: @Ememobong28 https://github.com/Ememobong28 are you still working on this? — Reply to this email directly, view it on GitHub <#18220 (comment)>, or unsubscribe https://github.com/notifications/unsubscribe-auth/AUGCC7ZGJ57UJHJKYDZLQ3TZNAKR7AVCNFSM6AAAAABLDJZ2FKVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZDEMZXGM4DOMZWHA . You are receiving this because you were mentioned.Message ID: @.>

Okay. will take a stab at this