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TST #24205: test_groupby_nth_interval created for Groupby Nth with Multindex Inverval #52968

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merged 5 commits into from
Apr 29, 2023
Merged

TST #24205: test_groupby_nth_interval created for Groupby Nth with Multindex Inverval #52968

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d61e523
#GH24205: test_groupby_nth_interval created
ltartaro Apr 21, 2023
343b78b
#24205: test_groupby_nth_interval created
ltartaro Apr 21, 2023
d8525d3
Add new nth test for interval index.
ltartaro Apr 27, 2023
493e22a
Add # GH#24205 to test_groupby_nth_interval()
ltartaro Apr 28, 2023
7f63bb6
Undo file permission change 100755 to 100644
ltartaro Apr 28, 2023
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23 changes: 23 additions & 0 deletions pandas/tests/groupby/test_nth.py
100644 → 100755
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Original file line number Diff line number Diff line change
Expand Up @@ -767,6 +767,29 @@ def test_groupby_nth_with_column_axis():
tm.assert_frame_equal(result, expected)


def test_groupby_nth_interval():
# 24205
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idx_result = MultiIndex(
[
pd.CategoricalIndex([pd.Interval(0, 1), pd.Interval(1, 2)]),
pd.CategoricalIndex([pd.Interval(0, 10), pd.Interval(10, 20)]),
],
[[0, 0, 0, 1, 1], [0, 1, 1, 0, -1]],
)
df_result = DataFrame({"col": range(len(idx_result))}, index=idx_result)
result = df_result.groupby(level=[0, 1], observed=False).nth(0)
val_expected = [0, 1, 3]
idx_expected = MultiIndex(
[
pd.CategoricalIndex([pd.Interval(0, 1), pd.Interval(1, 2)]),
pd.CategoricalIndex([pd.Interval(0, 10), pd.Interval(10, 20)]),
],
[[0, 0, 1], [0, 1, 0]],
)
expected = DataFrame(val_expected, index=idx_expected, columns=["col"])
tm.assert_frame_equal(result, expected)


@pytest.mark.parametrize(
"start, stop, expected_values, expected_columns",
[
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