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DEPR: deprecate Series/DataFrame.to_dense/to_sparse #26557

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jorisvandenbossche opened this issue May 29, 2019 · 0 comments · Fixed by #26684
Closed

DEPR: deprecate Series/DataFrame.to_dense/to_sparse #26557

jorisvandenbossche opened this issue May 29, 2019 · 0 comments · Fixed by #26684
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Deprecate Functionality to remove in pandas good first issue Sparse Sparse Data Type
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0.25.0

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@jorisvandenbossche
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We should properly deprecate to_dense and to_sparse on Series and DataFrame.

Series.to_dense already is disfunctional (#25680), and DataFrame.to_dense can be replaced with DataFrame.sparse.to_dense().

And the to_sparse methods return a SparseSeries / SparseDataFrame, which are deprecated (and in that sense already show some deprecation warning, but this should be done properly with their own deprecation warning and doc update).
Those could in principle be replaced with a new DataFrame/Series.sparse.to_sparse method? (although you can already do astype('Sparse'))
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DEPR: Deprecate Series/Dataframe.to_dense/to_sparse
Deprecate Series/Dataframe.to_dense/to_sparse
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@jorisvandenbossche