8000 BUG: agg with axis=1 by spencerogden · Pull Request #19605 · pandas-dev/pandas · GitHub
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BUG: agg with axis=1 #19605

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BUG: agg with axis=1 #19605

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e5bbf22
A very small change to pass the axis arg correctly down the stack of …
spencerogden Feb 8, 2018
66b8b9d
Formating change to pass flake8
spencerogden Feb 8, 2018
4b80516
Implement a transpose wrapper around column wise aggregation.
spencerogden Feb 8, 2018
f5698d5
Add exception block
spencerogden Feb 8, 2018
1c076a2
Correctly transpose just the result, not the returned tuple
spencerogden Feb 8, 2018
5a261fc
Add test to cover addition to frame.aggregate for axis=1 aggregation
spencerogden Feb 9, 2018
054a13a
Fix PEP8 formatting in test
spencerogden Feb 9, 2018
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Add test to cover addition to frame.aggregate for axis=1 aggregation
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@spencerogden
spencerogden committed Feb 9, 2018
commit 5a261fce832a10d2929639db33b88a0876632f18
11 changes: 11 additions & 0 deletions pandas/tests/frame/test_apply.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1012,3 +1012,14 @@ def test_non_callable_aggregates(self):
expected = df.size

assert result == expected

def test_frame_row_and_column_aggregates(self):
df = DataFrame({'B':[4,5,6,7,8],
'C':[7,8,9,10,11],},
index=[1,2,3,4,5])

assert_series_equal(df.agg('min',axis=1),
Series({1:4,2:5,3:6,4:7,5:8}))

assert_series_equal(df.agg('min',axis=1),
df.T.agg('min').T)
0