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Pull requests list

implement+test mean for datetimelike EA/Index/Series Algos Non-arithmetic algos: value_counts, factorize, sorting, isin, clip, shift, diff Datetime Datetime data dtype ExtensionArray Extending pandas with custom dtypes or arrays. Testing pandas testing functions or related to the test suite
#24757 by jbrockmendel was merged Jun 10, 2019 Loading…
2 of 4 tasks
0.25.0
109
REF: Fix maybe_promote Algos Non-arithmetic algos: value_counts, factorize, sorting, isin, clip, shift, diff Bug Dtype Conversions Unexpected or buggy dtype conversions
#25425 by h-vetinari was closed Oct 30, 2019 Loading…
3 tasks done
1
93
ENH: .shift optionally takes multiple periods Algos Non-arithmetic algos: value_counts, factorize, sorting, isin, clip, shift, diff Groupby Transformations e.g. cumsum, diff, rank
#54115 by jona-sassenhagen was merged Jul 28, 2023 Loading…
5 tasks done
2.1
1
88
DataFrame.corrwith() method now supports 'how', 'method' and 'min_periods' params Algos Non-arithmetic algos: value_counts, factorize, sorting, isin, clip, shift, diff Enhancement Numeric Operations Arithmetic, Comparison, and Logical operations
#22622 by Mottl was closed Dec 26, 2018 Loading…
3 tasks done
87
ENH: support cut/qcut for datetime/timedelta (GH14714) Algos Non-arithmetic algos: value_counts, factorize, sorting, isin, clip, shift, diff Datetime Datetime data dtype Enhancement Timedelta Timedelta data type
#14737 by aileronajay was merged Dec 3, 2016 Loading…
4 tasks done
0.20.0
1
87
ENH: Sorting of ExtensionArrays Algos Non-arithmetic algos: value_counts, factorize, sorting, isin, clip, shift, diff ExtensionArray Extending pandas with custom dtypes or arrays.
#19957 by TomAugspurger was merged Mar 22, 2018 Loading… 0.23.0
78
ENH/API: ExtensionArray.factorize Algos Non-arithmetic algos: value_counts, factorize, sorting, isin, clip, shift, diff API Design ExtensionArray Extending pandas with custom dtypes or arrays.
#20361 by TomAugspurger was merged Mar 27, 2018 Loading… 0.23.0
69
Support for PEP 3141 numbers Algos Non-arithmetic algos: value_counts, factorize, sorting, isin, clip, shift, diff Numeric Operations Arithmetic, Comparison, and Logical operations
#22952 by tm9k1 was merged Nov 20, 2018 Loading…
4 tasks done
0.24.0
1
66
ENH: use same value counts for roll_var to remove floating point artifacts Algos Non-arithmetic algos: value_counts, factorize, sorting, isin, clip, shift, diff Window rolling, ewma, expanding
#46431 by auderson was merged Apr 19, 2022 Loading…
3 of 4 tasks
1.5
1
64
Value counts normalize Algos Non-arithmetic algos: value_counts, factorize, sorting, isin, clip, shift, diff Bug Groupby Stale
#33652 by DataInformer was closed Jun 16, 2021 Loading…
6 tasks done
2
63
PERF: optimize algos.take for repeated calls Algos Non-arithmetic algos: value_counts, factorize, sorting, isin, clip, shift, diff Performance Memory or execution speed performance
#39692 by jorisvandenbossche was merged Mar 5, 2021 Loading… 1.3
59
ENH/PERF: use mask in factorize for nullable dtypes Algos Non-arithmetic algos: value_counts, factorize, sorting, isin, clip, shift, diff NA - MaskedArrays Related to pd.NA and nullable extension arrays Performance Memory or execution speed performance
#33064 by jorisvandenbossche was merged May 9, 2020 Loading… 1.1
56
ENH: Add return_inverse to cython-unique; unify unique/factorize-code Algos Non-arithmetic algos: value_counts, factorize, sorting, isin, clip, shift, diff Clean Enhancement Internals Related to non-user accessible pandas implementation
#23400 by h-vetinari was merged Nov 29, 2018 Loading… 0.24.0
53
BUG: make pct_change can handle the anchored freq #28664 Algos Non-arithmetic algos: value_counts, factorize, sorting, isin, clip, shift, diff Frequency DateOffsets
#28681 by dongho-jung was merged Nov 15, 2019 Loading…
5 tasks done
1.0.0
1
51
BUG: IntervalIndex.unique() only contains the first interval if all interval borders are negative Algos Non-arithmetic algos: value_counts, factorize, sorting, isin, clip, shift, diff Bug Interval Interval data type
#61920 by khemkaran10 was merged Nov 25, 2025 Loading…
3 tasks done
3.0
1
51
BUG: DataFrameGroupBy.value_counts includes non-observed categories of non-grouping columns Algos Non-arithmetic algos: value_counts, factorize, sorting, isin, clip, shift, diff Bug Categorical Categorical Data Type Groupby
#46798 by LucasG0 was merged Aug 7, 2022 Loading…
4 tasks done
1.5
1
50
add biweight midcorrelation as option for series correlation Algos Non-arithmetic algos: value_counts, factorize, sorting, isin, clip, shift, diff Enhancement Numeric Operations Arithmetic, Comparison, and Logical operations
#9826 by olgabot was closed Oct 18, 2015 Loading…
49
ENH: Handle extension arrays in algorithms.diff Algos Non-arithmetic algos: value_counts, factorize, sorting, isin, clip, shift, diff ExtensionArray Extending pandas with custom dtypes or arrays.
#31025 by TomAugspurger was merged Jan 23, 2020 Loading… 1.0.0
2
49
API/BUG/ENH: ewmvar/cov debiasing factors; add 'adjust' to ewmvar/std/vol/cov/corr; ewm*() min_periods Algos Non-arithmetic algos: value_counts, factorize, sorting, isin, clip, shift, diff Numeric Operations Arithmetic, Comparison, and Logical operations
#7926 by seth-p was merged Sep 10, 2014 Loading… 0.15.0
4
47
PERF/REF: improve performance of Series.searchsorted, PandasArray.searchsorted, collect functionality Algos Non-arithmetic algos: value_counts, factorize, sorting, isin, clip, shift, diff Performance Memory or execution speed performance
#22034 by topper-123 was merged Feb 24, 2019 Loading…
4 tasks done
0.25.0
1
46
Series.value_counts: Preserve original ordering Algos Non-arithmetic algos: value_counts, factorize, sorting, isin, clip, shift, diff Enhancement Reshaping Concat, Merge/Join, Stack/Unstack, Explode
#24302 by tomspur was closed Mar 19, 2019 Loading…
4 of 5 tasks
1
44
BUG - remove scaling multiplier from Period diff result Algos Non-arithmetic algos: value_counts, factorize, sorting, isin, clip, shift, diff Bug Period Period data type
#23915 by ms7463 was merged Dec 9, 2018 Loading…
4 tasks
0.24.0
1
44
BUG: stabilize sort_values algorithms for Series and time-like Indices Algos Non-arithmetic algos: value_counts, factorize, sorting, isin, clip, shift, diff Bug
#37310 by AlexKirko was merged Oct 31, 2020 Loading…
5 tasks done
1.2
1
42
TST: tests for maybe_promote (precursor to #23982) Algos Non-arithmetic algos: value_counts, factorize, sorting, isin, clip, shift, diff Testing pandas testing functions or related to the test suite
#25637 by h-vetinari was merged Jun 21, 2019 Loading… 0.25.0
42
PERF: further improve take (reindex/unstack) for ArrayManager Algos Non-arithmetic algos: value_counts, factorize, sorting, isin, clip, shift, diff Performance Memory or execution speed performance Reshaping Concat, Merge/Join, Stack/Unstack, Explode
#40300 by jorisvandenbossche was merged Mar 15, 2021 Loading… 1.3
41
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