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BUG: Fixes to FixedForwardWindowIndexer and GroupbyIndexer (#43267)

Groupby

SegfaultNon-Recoverable ErrorNon-Recoverable Error

Windowrolling, ewma, expandingrolling, ewma, expanding

Status: Merged (completed).

pandas-dev/pandasnumber 43291

#43291 In pandas-dev/pandas;

· by dsm054 was closed on Oct 16, 2021

· 

1.3.4

BUG: Preserve categorical dtypes when melting (#15853)

ReshapingConcat, Merge/Join, Stack/Unstack, ExplodeConcat, Merge/Join, Stack/Unstack, Explode

Status: Closed (abandoned).

pandas-dev/pandasnumber 23671

#23671 In pandas-dev/pandas;

· by dsm054 was closed on Jan 5, 2019

BUG: Keep column level names during resample nunique (#23222)

AlgosNon-arithmetic algos: value_counts, factorize, sorting, isin, clip, shift, diffNon-arithmetic algos: value_counts, factorize, sorting, isin, clip, shift, diff

Bug

MultiIndex

Status: Closed (abandoned).

pandas-dev/pandasnumber 23645

#23645 In pandas-dev/pandas;

· by dsm054 was closed on Feb 27, 2019

TST: Verify that float columns stay float after pivot (#7142)

ReshapingConcat, Merge/Join, Stack/Unstack, ExplodeConcat, Merge/Join, Stack/Unstack, Explode

Testingpandas testing functions or related to the test suitepandas testing functions or related to the test suite

Status: Merged (completed).

pandas-dev/pandasnumber 16815

#16815 In pandas-dev/pandas;

· by dsm054 was closed on Jul 6, 2017

· 

0.21.0

TST: Verify that positional shifting works with duplicate columns (#9…

ReshapingConcat, Merge/Join, Stack/Unstack, ExplodeConcat, Merge/Join, Stack/Unstack, Explode

Testingpandas testing functions or related to the test suitepandas testing functions or related to the test suite

Status: Merged (completed).

pandas-dev/pandasnumber 16810

#16810 In pandas-dev/pandas;

· by dsm054 was closed on Jul 2, 2017

· 

0.21.0

TST: Verify columns entirely below chop_threshold still print (#6839)

Testingpandas testing functions or related to the test suitepandas testing functions or related to the test suite

Status: Merged (completed).

pandas-dev/pandasnumber 16809

#16809 In pandas-dev/pandas;

· by dsm054 was closed on Jul 1, 2017

· 

0.21.0

TST: Add test of building frame from named Series and columns (#9232)

ReshapingConcat, Merge/Join, Stack/Unstack, ExplodeConcat, Merge/Join, Stack/Unstack, Explode

Testingpandas testing functions or related to the test suitepandas testing functions or related to the test suite

Status: Merged (completed).

pandas-dev/pandasnumber 16700

#16700 In pandas-dev/pandas;

· by dsm054 was closed on Jun 15, 2017

· 

0.21.0

WIP: keep column levels when using apply after grouping (#16231)

Bug

Groupby

Status: Closed (abandoned).

pandas-dev/pandasnumber 16651

#16651 In pandas-dev/pandas;

· by dsm054 was closed on Nov 10, 2017

TST: verify we can add and subtract from indices (#8142)

IndexingRelated to indexing on series/frames, not to indexes themselvesRelated to indexing on series/frames, not to indexes themselves

Testingpandas testing functions or related to the test suitepandas testing functions or related to the test suite

Status: Merged (completed).

pandas-dev/pandasnumber 16629

#16629 In pandas-dev/pandas;

· by dsm054 was closed on Jun 8, 2017

· 

0.21.0

TST: NaN in MultiIndex should not become a string (#7031)

Missing-datanp.nan, pd.NaT, pd.NA, dropna, isnull, interpolatenp.nan, pd.NaT, pd.NA, dropna, isnull, interpolate

MultiIndex

Testingpandas testing functions or related to the test suitepandas testing functions or related to the test suite

Status: Merged (completed).

pandas-dev/pandasnumber 16625

#16625 In pandas-dev/pandas;

· by dsm054 was closed on Jun 8, 2017

· 

0.21.0

BUG: Fix Series.get failure on missing NaN (#8569)

Bug

IndexingRelated to indexing on series/frames, not to indexes themselvesRelated to indexing on series/frames, not to indexes themselves

Missing-datanp.nan, pd.NaT, pd.NA, dropna, isnull, interpolatenp.nan, pd.NaT, pd.NA, dropna, isnull, interpolate

Status: Merged (completed).

pandas-dev/pandasnumber 16619

#16619 In pandas-dev/pandas;

· by dsm054 was closed on Jun 8, 2017

· 

0.20.3

BUG: Preserve data order when stacking unsorted levels (#16323)

MultiIndex

RegressionFunctionality that used to work in a prior pandas versionFunctionality that used to work in a prior pandas version

ReshapingConcat, Merge/Join, Stack/Unstack, ExplodeConcat, Merge/Join, Stack/Unstack, Explode

Status: Merged (completed).

pandas-dev/pandasnumber 16325

#16325 In pandas-dev/pandas;

· by dsm054 was closed on May 11, 2017

· 

0.20.2