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PERF: Improve SeriesGroupBy.value_counts performances with categorical values.

Groupby

PerformanceMemory or execution speed performanceMemory or execution speed performance

Stale

Status: Closed (abandoned).

pandas-dev/pandasnumber 46940

#46940 In pandas-dev/pandas;

· by LucasG0 was closed on Aug 1, 2022

BUG: <code>DataFrameGroupBy.value_counts</code> includes non-observed categories of non-grouping columns

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

Bug

CategoricalCategorical Data TypeCategorical Data Type

Groupby

Status: Merged (completed).

pandas-dev/pandasnumber 46798

#46798 In pandas-dev/pandas;

· by LucasG0 was closed on Aug 7, 2022

· 

1.5

BUG: Fix read_json shape error on multi-indexed DF/SR with orient='split' #4889

Bug

IO JSONread_json, to_json, json_normalizeread_json, to_json, json_normalize

Stale

Status: Closed (abandoned).

pandas-dev/pandasnumber 34471

#34471 In pandas-dev/pandas;

· by LucasG0 was closed on Nov 6, 2020

BUG:#29928 Fix to_json output 'table' orient for single level MultiIndex.

IO JSONread_json, to_json, json_normalizeread_json, to_json, json_normalize

MultiIndex

Stale

Status: Closed (abandoned).

pandas-dev/pandasnumber 34375

#34375 In pandas-dev/pandas;

· by LucasG0 was closed on Feb 11, 2021