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213 Open 2,631 Closed
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Issues list

BUG: way to include all columns within a groupby apply Apply Apply, Aggregate, Transform, Map Bug Closing Candidate May be closeable, needs more eyeballs Groupby
#61406 opened May 8, 2025 by madelavar12
3 tasks done
4
ENH: Add warning when DataFrame.groupby drops NA keys Enhancement Groupby Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate Needs Discussion Requires discussion from core team before further action
#61339 opened Apr 22, 2025 by tehunter
2 of 3 tasks
1
2
BUG: Fix scatter plot colors in groupby context to match line plot behavior (#59846) Bug Groupby Visualization plotting
#61233 opened Apr 5, 2025 by myenugula Loading…
5 tasks done
1
13
ENH: Accept no fields for groupby by Enhancement Groupby Needs Discussion Requires discussion from core team before further action
#61160 opened Mar 21, 2025 by simonaubertbd
1 of 3 tasks
1
@udit710
10
BUG: ValueError: ndarray is not C-contiguous for cummax on nullable dtypes Bug Groupby NA - MaskedArrays Related to pd.NA and nullable extension arrays Transformations e.g. cumsum, diff, rank
#61031 opened Mar 2, 2025 by MarcoGorelli
3 tasks done
@rhshadrach
3
BUG: Dropped Index Name on Aggregated Index Column with MultiIndexed DataFrame Bug Closing Candidate May be closeable, needs more eyeballs Groupby
#60603 opened Dec 24, 2024 by RahimD
3 tasks done
1
BUG: Arrow Struct columns cannot be grouped on (ArrowNotImplementedError) Arrow pyarrow functionality Bug Error Reporting Incorrect or improved errors from pandas Groupby
#60594 opened Dec 20, 2024 by a-reich
2 of 3 tasks
1
API: pass ddof down to Cythonised std / var in groupby.agg API Design Groupby Needs Discussion Requires discussion from core team before further action
#60591 opened Dec 20, 2024 by MarcoGorelli
3
BUG: transform("cumcount") returns a Series instead of a Dataframe. API - Consistency Internal Consistency of API/Behavior Bug Groupby Needs Discussion Requires discussion from core team before further action
#60551 opened Dec 12, 2024 by ClaudioSalvatoreArcidiacono
2 of 3 tasks
10
BUG: inconsistent treatment of overflows between groupby.sum() and groupby.apply(lambda: _grp: _grp.sum()) and DataFrame.resample Bug Groupby Reduction Operations sum, mean, min, max, etc.
#60303 opened Nov 13, 2024 by vasil-pashov
2 of 3 tasks
1
PERF: dropna with SparseArray experiments a much worse time complexity Groupby Performance Memory or execution speed performance Sparse Sparse Data Type
#60179 opened Nov 4, 2024 by mflova
3 tasks done
2
PERF: Extreme regression in 2.2 when aggregating a DataFrame with .attrs data Closing Candidate May be closeable, needs more eyeballs Groupby metadata _metadata, .attrs Performance Memory or execution speed performance
#60070 opened Oct 18, 2024 by buhrmann
2 of 3 tasks
4
ENH: Should groupby's value_counts sorts on count before proportion is computed Algos Non-arithmetic algos: value_counts, factorize, sorting, isin, clip, shift, diff Enhancement Groupby Needs Discussion Requires discussion from core team before further action
#59725 opened Sep 5, 2024 by sfc-gh-joshi
3 tasks done
1
BUG: groupby.agg with UDF changing pyarrow dtypes Bug Groupby pyarrow dtype retention op with pyarrow dtype -> expect pyarrow result Stale
#59601 opened Aug 25, 2024 by rhshadrach Loading…
5 tasks
3.0
1
3
BUG: inconsistent indices in GroupByRolling when selecting or not selecting subset of columns API - Consistency Internal Consistency of API/Behavior Bug Groupby Window rolling, ewma, expanding
#59567 opened Aug 20, 2024 by inigohidalgo
2 of 3 tasks
7
ENH: Add Float128 support for groupby. Enhancement Groupby
#59483 opened Aug 11, 2024 by cemde
1 of 3 tasks
@RafaelGreg18
8
BUG: groupby then resample on column gives incorrect results if the index is out of order Bug Groupby Resample resample method
#59350 opened Jul 30, 2024 by knowecho
2 of 3 tasks
1
@aram-cedarwood
2
DataFrameGroupBy.agg with nan results into inf Apply Apply, Aggregate, Transform, Map Bug Groupby
#59106 opened Jun 26, 2024 by glaucouri
3 tasks done
1
@kushagr96
4
BUG: groupby.rank is not supported for large_string[pyarrow] dtype Arrow pyarrow functionality Bug Groupby Strings String extension data type and string data
#59088 opened Jun 24, 2024 by cvm-a
2 of 3 tasks
@chaarvii
2
BUG: Unexpected cast to float for DataFrame.groupby().agg(engine="numba") Bug Dtype Conversions Unexpected or buggy dtype conversions Groupby numba numba-accelerated operations
#58869 opened May 30, 2024 by willsthompson
2 of 3 tasks
1
BUG: groupby with as_index=False drops groupings when names collide Bug Groupby
#58337 opened Apr 20, 2024 by rhshadrach
2
@AkisPanagiotopoulos
1
ENH: GroupBy.transform should accept similar arguments to GroupBy.agg Apply Apply, Aggregate, Transform, Map Enhancement Groupby
#58318 opened Apr 18, 2024 by WillAyd
1 of 3 tasks
1
@abeltavares
5
ENH: pd.NamedAgg should accept args and kwargs Apply Apply, Aggregate, Transform, Map Enhancement Groupby
#58283 opened Apr 16, 2024 by WillAyd
1 of 3 tasks
1
@haiyashah
5
BUG: DataFrameGroupBy.__getitem__ fails with tuples on multi-level column objects API - Consistency Internal Consistency of API/Behavior Bug Groupby Indexing Related to indexing on series/frames, not to indexes themselves
#58282 opened Apr 16, 2024 by tehunter
3 tasks done
1
ENH: Should we support aggregating by-frame in DataFrameGroupBy.agg Apply Apply, Aggregate, Transform, Map Enhancement Groupby Needs Discussion Requires discussion from core team before further action
#58225 opened Apr 11, 2024 by rhshadrach
6
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