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Pull requests: pandas-dev/pandas
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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: 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
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…
BUG: Merge on CategoricalIndex fails if left_index=True & right_index=True, but not if on={index} #28189 Categorical Categorical Data Type Reshaping Concat, Merge/Join, Stack/Unstack, Explode
#28296 by hugoecarl was closed Dec 17, 2019 Loading…
5 tasks done
BUG: Categorical.copy deep kwarg Algos Non-arithmetic algos: value_counts, factorize, sorting, isin, clip, shift, diff Categorical Categorical Data Type
#27024 by jbrockmendel was closed Jun 27, 2019 Loading…
2 of 4 tasks
Defer Series.str.get_dummies to pandas.get_dummies Categorical Categorical Data Type Enhancement
#26686 by joshlk was closed Sep 8, 2019 Loading…
2 of 4 tasks
ENH: allow better categorical dtype strings, e.g. Categorical Data Type Enhancement Stale
category[string] Categorical #53190 by topper-123 was closed Oct 12, 2023 Loading…
4 of 6 tasks
BUG: fix sorting with observed=True in groupby Bug Categorical Categorical Data Type Groupby
#25173 by topper-123 was closed Mar 19, 2019 Loading…
4 tasks done
added check if categoricalDtype for issue #19278 Categorical Categorical Data Type Sparse Sparse Data Type
#20644 by xchoudhury was closed Oct 11, 2018 Loading…
2 of 4 tasks
PERF: fix #32976 slow group by for categorical columns Categorical Categorical Data Type Performance Memory or execution speed performance Stale
#33739 by rtlee9 was closed Nov 6, 2020 Loading…
5 tasks done
Add fix to raise error when category value 'x' is not predefined but is assigned through df.loc[..]=x Categorical Categorical Data Type Indexing Related to indexing on series/frames, not to indexes themselves
#34011 by chrispe was closed Oct 4, 2021 Loading…
4 tasks done
Categorical.(get|from)_dummies Categorical Categorical Data Type Enhancement Stale
#34426 by clbarnes was closed Mar 21, 2021 Loading…
5 tasks done
BUG: GroupBy.count() and GroupBy.sum() incorreclty return NaN instead of 0 for missing categories Categorical Categorical Data Type Groupby Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate
Deprecate groupby/pivot observed=False default Categorical Categorical Data Type Deprecate Functionality to remove in pandas Needs Discussion Requires discussion from core team before further action Stale
#35967 by jseabold was closed Jul 11, 2021 Loading…
5 tasks done
BUG: Fix is_categorical_dtype for Sparse[category] Categorical Categorical Data Type Dtype Conversions Unexpected or buggy dtype conversions Sparse Sparse Data Type
#35797 by dsaxton was closed Sep 19, 2020 Loading…
5 tasks done
BUG: read_hdf bad filtering in case of categorical string columns Categorical Categorical Data Type IO HDF5 read_hdf, HDFStore
REGR: missing vals not replaceable in categorical Categorical Categorical Data Type Regression Functionality that used to work in a prior pandas version replace replace method
#40657 by mzeitlin11 was closed Mar 31, 2021 Loading…
4 tasks done
ENH: Support observed keyword argument in Categorical.value_counts Categorical Categorical Data Type Enhancement Stale
#44002 by AndrewEckart was closed Feb 22, 2022 Loading…
4 tasks done
TST Providing unit test to snippet GH32414 Categorical Categorical Data Type ExtensionArray Extending pandas with custom dtypes or arrays. Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate Testing pandas testing functions or related to the test suite
#43136 by Bhavay-2001 was closed Aug 27, 2021 Loading…
1 task done
BUG: CategoricalIndex.get_indexer issue with NaNs (#45361) Categorical Categorical Data Type Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate
#45373 by Shashank-Shet was merged Jan 28, 2022 Loading…
2 of 4 tasks
REF: Move Categorical logic from Grouping (#46203) Categorical Categorical Data Type Groupby Refactor Internal refactoring of code
#46207 by NickCrews was closed Mar 8, 2022 Loading…
4 tasks done
ENH: Make categories setitem error more readable Categorical Categorical Data Type Error Reporting Incorrect or improved errors from pandas Stale
#47624 by siddartha-10 was closed Aug 15, 2022 Loading…
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