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Pull requests: pandas-dev/pandas
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ENH: Implement categorical accessor for arrow arrays Arrow pyarrow functionality Categorical Categorical Data Type Stale
#56670 by phofl was closed Apr 15, 2025 Loading…
PERF: CategoricalDtype.update_dtype Categorical Categorical Data Type Performance Memory or execution speed performance
BUG: GH13629 Binned groupby median function calculates median on empt… Bug Categorical Categorical Data Type Groupby
#14225 by paul-mannino was merged Sep 18, 2016 Loading…
BUG: Fix Categorical comparsion with Series of dtype 'category' Bug Categorical Categorical Data Type Dtype Conversions Unexpected or buggy dtype conversions
#16667 by funnycrab was closed Dec 10, 2017 Loading…
4 tasks
BUG: Categoricals shouldn't allow non-strings when object dtype is passed (#13919) Categorical Categorical Data Type Dtype Conversions Unexpected or buggy dtype conversions Error Reporting Incorrect or improved errors from pandas
#14027 by wcwagner was closed Aug 18, 2016 Loading…
2 of 4 tasks
Fixing the code sample in pandas/core/categorical.py Categorical Categorical Data Type Docs
#10358 by anushshetty was closed Aug 19, 2015 Loading…
Implement Categorical.searchsorted(v, side, sorter) Categorical Categorical Data Type Enhancement
#8928 by stevesimmons was closed Dec 3, 2014 Loading…
StataReader: Support sorting categoricals Categorical Categorical Data Type IO Stata read_stata, to_stata
#8816 by PKEuS was closed Nov 18, 2014 Loading…
DOC/FIX: In R it's still levels... Categorical Categorical Data Type Docs
#8561 by jankatins was merged Oct 15, 2014 Loading…
ENH: Handle categorical dtype to/from R Categorical Categorical Data Type
#9187 by jseabold was closed Mar 8, 2015 Loading…
BUG: bug in sort for grouping with a categorical columns (GH8868) Bug Categorical Categorical Data Type
#9480 by cottrell was merged Feb 18, 2015 Loading…
BUG: alignment of CategoricalIndex Categorical Categorical Data Type Indexing Related to indexing on series/frames, not to indexes themselves
#13440 by toobaz was closed Jul 9, 2016 Loading…
3 of 4 tasks
Change get_dummies() to return columns of dtype=bool instead of np.float64 Categorical Categorical Data Type Dtype Conversions Unexpected or buggy dtype conversions Reshaping Concat, Merge/Join, Stack/Unstack, Explode
#13283 by avishaylivne was closed May 31, 2016 Loading…
BUG: Respect Filtered Categorical in Crosstab Categorical Categorical Data Type Reshaping Concat, Merge/Join, Stack/Unstack, Explode
#13073 by gfyoung was closed May 13, 2016 Loading…
BUG: Copy categorical codes if empty (fixes #18051) Categorical Categorical Data Type Regression Functionality that used to work in a prior pandas version
#18279 by ghasemnaddaf was closed Nov 22, 2017 Loading…
4 tasks done
PERF: __contains__ method for Categorical Categorical Categorical Data Type Performance Memory or execution speed performance
#21022 by fjetter was closed Jun 19, 2018 Loading…
4 tasks done
TST : Adding new test case for pivot_table() with Categorical data Categorical Categorical Data Type Testing pandas testing functions or related to the test suite
#21381 by uds5501 was closed Sep 25, 2018 Loading…
3 of 4 tasks
PERF: CategoricalIndex.get_loc should avoid expensive cast of .codes to int64 Categorical Categorical Data Type Performance Memory or execution speed performance
#21699 by topper-123 was closed Oct 19, 2018 Loading…
2 of 4 tasks
BUG: #14016. Preserve categorical keys through concat Categorical Categorical Data Type Reshaping Concat, Merge/Join, Stack/Unstack, Explode
#14035 by tom-bird was closed May 13, 2017 Loading…
2 of 4 tasks
BUG: fix categorical searchsorted bug (#14522) Bug Categorical Categorical Data Type
#14544 by chiangqiqi was closed Nov 2, 2016 Loading…
4 tasks
BUG: Categoricals shouldn't allow non-strings when object dtype is passed (#13919) API Design Categorical Categorical Data Type Dtype Conversions Unexpected or buggy dtype conversions Error Reporting Incorrect or improved errors from pandas
#14047 by wcwagner was closed Sep 11, 2016 Loading…
2 of 4 tasks
Deprecated fastpath parameter in Categorial constructor Categorical Categorical Data Type Deprecate Functionality to remove in pandas
#17889 by kaichogami was closed Dec 28, 2017 Loading…
1 task
BUG: Fix categorical formatter not folding the output when it exceeds display width Bug Categorical Categorical Data Type Output-Formatting __repr__ of pandas objects, to_string
#17639 by Lunran was closed Dec 2, 2017 Loading…
4 tasks done
ERR: raise if values passed to Categorical is a DataFrame Categorical Categorical Data Type Error Reporting Incorrect or improved errors from pandas
#18207 by jbrockmendel was closed Nov 12, 2017 Loading…
Inconsistent behaviour when apply() used on categorical with NaN values Bug Categorical Categorical Data Type
#22191 by manuhortet was closed Jan 14, 2019 Loading…
3 of 4 tasks
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