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Pull requests: pandas-dev/pandas
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BUG: Check for duplicate names columns and index in crosstab Reshaping Concat, Merge/Join, Stack/Unstack, Explode
#26717 by cuchoi was closed Aug 28, 2019 Loading…
2 of 4 tasks
PERF: Improve performance of Series.isin() on sets Performance Memory or execution speed performance Reshaping Concat, Merge/Join, Stack/Unstack, Explode
#25812 by kykosic was closed Mar 24, 2019 Loading…
4 tasks done
MultiIndex Support for DataFrame.pivot Enhancement Reshaping Concat, Merge/Join, Stack/Unstack, Explode
#25330 by thoo was closed Jul 11, 2019 Loading…
4 tasks
ENH: accept None behaviour for suffixes in DataFrame.merge API Design Reshaping Concat, Merge/Join, Stack/Unstack, Explode
#25243 by charlesdong1991 was closed Mar 19, 2019 Loading…
4 tasks
Fixed interpolate function Bug Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate Reshaping Concat, Merge/Join, Stack/Unstack, Explode
#25210 by Vibhu-Agarwal was closed Jun 8, 2019 Loading…
4 tasks done
BUG-24915 fix unhashble Series.name in df aggregation Reshaping Concat, Merge/Join, Stack/Unstack, Explode
#24920 by lofoyet was closed Feb 28, 2019 Loading…
2 of 4 tasks
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
Fixing shift() for ExtensionArray ExtensionArray Extending pandas with custom dtypes or arrays. Reshaping Concat, Merge/Join, Stack/Unstack, Explode
BUG: Preserve categorical dtypes when melting (#15853) Reshaping Concat, Merge/Join, Stack/Unstack, Explode
#23671 by dsm054 was closed Jan 5, 2019 Loading…
4 tasks done
PERF: speed up concat on Series by skipping unnecessary DataFrame creation Performance Memory or execution speed performance Reshaping Concat, Merge/Join, Stack/Unstack, Explode
API: Unify .update to generic Clean Reshaping Concat, Merge/Join, Stack/Unstack, Explode
#23192 by h-vetinari was closed Apr 20, 2019 Loading…
4 tasks done
REF: Simplify Datetimelike constructor dispatching Datetime Datetime data dtype Period Period data type Reshaping Concat, Merge/Join, Stack/Unstack, Explode
#23140 by jbrockmendel was closed Oct 18, 2018 Loading…
ENH: add inplace-kwarg to df.update API Design Reshaping Concat, Merge/Join, Stack/Unstack, Explode
#22286 by h-vetinari was closed Dec 3, 2018 Loading…
4 tasks done
qcut: Option to return -inf/inf as lower/upper bound Enhancement Reshaping Concat, Merge/Join, Stack/Unstack, Explode
#22185 by dberenbaum was closed Mar 1, 2019 Loading…
4 tasks done
BUG: TimedeltaIndex.intersection Bug Reshaping Concat, Merge/Join, Stack/Unstack, Explode Timedelta Timedelta data type
#22114 by kirkhansen was closed Feb 27, 2019 Loading…
4 tasks
Maintain Dict Ordering with Concat Bug Reshaping Concat, Merge/Join, Stack/Unstack, Explode
#21512 by SaturninoMateus was closed Oct 11, 2018 Loading…
4 tasks done
ENH: Merge DataFrame and Series using Concat, Merge/Join, Stack/Unstack, Explode
on (GH21220) Enhancement Reshaping ENH: add np.nan funcs to _cython_table Numeric Operations Arithmetic, Comparison, and Logical operations Reshaping Concat, Merge/Join, Stack/Unstack, Explode
#21123 by topper-123 was closed Jul 28, 2018 Loading…
3 tasks done
BUG: to_records() fails for MultiIndex DF (#21064) MultiIndex Reshaping Concat, Merge/Join, Stack/Unstack, Explode
#21082 by fersarr was closed Dec 3, 2018 Loading…
4 tasks done
DEPR: DataFrame dropna accepting multiple axes Deprecate Functionality to remove in pandas Reshaping Concat, Merge/Join, Stack/Unstack, Explode
ENH GH20601 raise error when pivot table's number of levels > int32 Error Reporting Incorrect or improved errors from pandas Numeric Operations Arithmetic, Comparison, and Logical operations Reshaping Concat, Merge/Join, Stack/Unstack, Explode
#20784 by anhqle was closed Nov 11, 2018 Loading…
Fixing melt() when col_level>0 in a multi-index column MultiIndex Reshaping Concat, Merge/Join, Stack/Unstack, Explode
#20646 by rbavishi was closed Sep 25, 2018 Loading…
Stop concat from attempting to sort mismatched columns by default Reshaping Concat, Merge/Join, Stack/Unstack, Explode
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