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PERF: <code>dropna</code> with <code>SparseArray</code> experiments a much worse time complexity

Groupby

PerformanceMemory or execution speed performanceMemory or execution speed performance

SparseSparse Data TypeSparse Data Type

Status: Open.

#60179 In pandas-dev/pandas;

· mflova opened on Nov 4, 2024

BUG: regression in master for DataFrame.sparse.from_spmatrix

Bug

Needs DiscussionRequires discussion from core team before further actionRequires discussion from core team before further action

SparseSparse Data TypeSparse Data Type

Status: Open.

#59212 In pandas-dev/pandas;

· bmreiniger opened on Jul 8, 2024

BUG: <code>pd.Arrays.SparseArray</code> warning inconsistencies when contained in a <code>pd.DataFrame</code> (potential false positive)

Bug

Needs TriageIssue that has not been reviewed by a pandas team memberIssue that has not been reviewed by a pandas team member

SparseSparse Data TypeSparse Data Type

Status: Open.

#58582 In pandas-dev/pandas;

· mflova opened on May 5, 2024

BUG: Behaviour of sum/mean on sparse boolean arrays changed between 1.5.3 and pandas 2.2

Bug

Dtype ConversionsUnexpected or buggy dtype conversionsUnexpected or buggy dtype conversions

ExtensionArrayExtending pandas with custom dtypes or arrays.Extending pandas with custom dtypes or arrays.

Reduction Operationssum, mean, min, max, etc.sum, mean, min, max, etc.

SparseSparse Data TypeSparse Data Type

Status: Open.

#58015 In pandas-dev/pandas;

· CompRhys opened on Mar 26, 2024

DEPR: SparseDtype

DeprecateFunctionality to remove in pandasFunctionality to remove in pandas

Needs DiscussionRequires discussion from core team before further actionRequires discussion from core team before further action

SparseSparse Data TypeSparse Data Type

Status: Open.

#56518 In pandas-dev/pandas;

· jbrockmendel opened on Dec 15, 2023

BUG: pd.DataFrame.sum() min_count parameter does not work with Sparse[float64, nan] dtype

Bug

Reduction Operationssum, mean, min, max, etc.sum, mean, min, max, etc.

SparseSparse Data TypeSparse Data Type

Status: Open.

#55123 In pandas-dev/pandas;

· Danferno opened on Sep 13, 2023

Series[dt64].astype(int64) vs Series[Sparse[dt64]].astype(int64)

Astype

Bug

DatetimeDatetime data dtypeDatetime data dtype

SparseSparse Data TypeSparse Data Type

Status: Open.

#49631 In pandas-dev/pandas;

· jbrockmendel opened on Nov 10, 2022

BUG: Wrong result after comparison SparseArray with arrays

Bug

Numeric OperationsArithmetic, Comparison, and Logical operationsArithmetic, Comparison, and Logical operations

SparseSparse Data TypeSparse Data Type

Status: Open.

#45284 In pandas-dev/pandas;

· bdrum opened on Jan 9, 2022

BUG: SparseArray is not implemented as index first

Bug

SparseSparse Data TypeSparse Data Type

Status: Open.

#45126 In pandas-dev/pandas;

· bdrum opened on Dec 30, 2021

API/DEPR: SparseArray constructor usability

ConstructorsSeries/DataFrame/Index/pd.array ConstructorsSeries/DataFrame/Index/pd.array Constructors

DeprecateFunctionality to remove in pandasFunctionality to remove in pandas

Needs DiscussionRequires discussion from core team before further actionRequires discussion from core team before further action

SparseSparse Data TypeSparse Data Type

Status: Open.

#43628 In pandas-dev/pandas;

· mzeitlin11 opened on Sep 17, 2021

BUG: COO matrices are copied and converted

Docs

SparseSparse Data TypeSparse Data Type

Status: Open.

#43419 In pandas-dev/pandas;

· memeplex opened on Sep 5, 2021

BUG: error writing sparse DataFrame to HDF

Bug

IO HDF5read_hdf, HDFStoreread_hdf, HDFStore

SparseSparse Data TypeSparse Data Type

Status: Open.

#42070 In pandas-dev/pandas;

· raphaelquast opened on Jun 17, 2021