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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

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

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

BUG: Serializing sparse dataframe 15x slower than converting to dense version + serializing the dense version

IO CSVread_csv, to_csvread_csv, to_csv

PerformanceMemory or execution speed performanceMemory or execution speed performance

SparseSparse Data TypeSparse Data Type

Status: Open.

#41023 In pandas-dev/pandas;

· melkonyan opened on Apr 18, 2021

BUG: pandas.SparseDtype from pandas.CategoricalDtype fails

Bug

CategoricalCategorical Data TypeCategorical Data Type

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

SparseSparse Data TypeSparse Data Type

Status: Open.

#39874 In pandas-dev/pandas;

· PetarMPetrov opened on Feb 17, 2021

BUG: GroupBy.mean() is extremely slow with sparse arrays

Groupby

PerformanceMemory or execution speed performanceMemory or execution speed performance

SparseSparse Data TypeSparse Data Type

Status: Open.

#36123 In pandas-dev/pandas;

· gokceneraslan opened on Sep 4, 2020

BUG: pd.DataFrame.astype for SparseDtype with different fill_value results in data loss

Astype

Bug

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

SparseSparse Data TypeSparse Data Type

Status: Open.

#35795 In pandas-dev/pandas;

· shengpu-tang opened on Aug 18, 2020