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Pull requests: pandas-dev/pandas
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BUG: pd.crosstab fails when passed multiple columns, margins True and normalize True Bug Reshaping Concat, Merge/Join, Stack/Unstack, Explode
Fix Issue #34923: Inferred dtype at the end of df explode method Dtype Conversions Unexpected or buggy dtype conversions Needs Discussion Requires discussion from core team before further action Reshaping Concat, Merge/Join, Stack/Unstack, Explode
#35011 by SanthoshBala18 was closed Nov 26, 2020 Loading…
5 tasks
BUG: DataFrame.melt gives unexpected result when column "value" already exists Deprecate Functionality to remove in pandas Reshaping Concat, Merge/Join, Stack/Unstack, Explode
BUG fix _Unstacker int32 limit in dataframe sizes (pandas-dev#26314) Reshaping Concat, Merge/Join, Stack/Unstack, Explode
#34827 by KaonToPion was closed Sep 15, 2020 Loading…
2 of 5 tasks
BUG: Fix value setting in case of merging via index on one side and column on other side. Reshaping Concat, Merge/Join, Stack/Unstack, Explode
#34496 by phofl was closed Jan 1, 2021 Loading…
9 tasks done
DOC: Clarify behaviour of pd.merge Reshaping Concat, Merge/Join, Stack/Unstack, Explode
#34495 by bharatr21 was closed Jul 8, 2020 Loading…
4 of 5 tasks
Allow merge_asof on first column of like-levelled MultiIndexes MultiIndex Reshaping Concat, Merge/Join, Stack/Unstack, Explode
#34259 by tmct was closed Jun 20, 2020 Loading…
3 of 4 tasks
Restrict Pandas merge suffixes param type to list/tuple to avoid interchange in right and left suffix order API Design Error Reporting Incorrect or improved errors from pandas Reshaping Concat, Merge/Join, Stack/Unstack, Explode
BUG/ENH: Fix apply to only call Concat, Merge/Join, Stack/Unstack, Explode
func once on the first column/row Reshaping TST: concat(..., copy=False) with datetime tz-aware data raises ValueError: cannot create a DatetimeTZBlock without a tz Reshaping Concat, Merge/Join, Stack/Unstack, Explode Testing pandas testing functions or related to the test suite Timezones Timezone data dtype
CLN: avoid internals in DataFrame.sort_values Clean Reshaping Concat, Merge/Join, Stack/Unstack, Explode
BUG: Fix join on MultiIndex for mixed Datetimelike and string levels Reshaping Concat, Merge/Join, Stack/Unstack, Explode
#32739 by nrebena was closed Jun 14, 2020 Loading…
5 tasks done
MultiIndex union/intersection with non-object other MultiIndex Reshaping Concat, Merge/Join, Stack/Unstack, Explode
Backport PR #32166 on branch 1.0.x Datetime Datetime data dtype Reshaping Concat, Merge/Join, Stack/Unstack, Explode
REF: dont use numexpr in places where it doesnt help. Performance Memory or execution speed performance Reshaping Concat, Merge/Join, Stack/Unstack, Explode
#31984 by jbrockmendel was closed Feb 17, 2020 Loading…
BUG: concat not copying index and columns when copy=True Bug Reshaping Concat, Merge/Join, Stack/Unstack, Explode
FIX: fix interpolate with kwarg limit area and limit direction using pad or bfill Bug Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate Reshaping Concat, Merge/Join, Stack/Unstack, Explode
#31048 by cchwala was closed Nov 27, 2020 Loading…
5 tasks done
BUG: Fix MutliIndexed unstack failures at tuple names Bug MultiIndex Reshaping Concat, Merge/Join, Stack/Unstack, Explode
BUG: correct wrong error message in df.pivot when columns=None Error Reporting Incorrect or improved errors from pandas Reshaping Concat, Merge/Join, Stack/Unstack, Explode
BUG: aggregations were getting overwritten if they had the same name Groupby Reshaping Concat, Merge/Join, Stack/Unstack, Explode
ENH: Add ignore_index to sort_index API Design Enhancement Reshaping Concat, Merge/Join, Stack/Unstack, Explode
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