scanpy.pp.subsample

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scanpy.pp.subsample#

scanpy.pp.subsample(data, fraction=None, *, n_obs=None, random_state=0, copy=False)[source]#

Subsample to a fraction of the number of observations.

Deprecated since version 1.11.0: Use sample() instead.

Parameters:
data AnnData | ndarray | csr_array | csc_array | csr_matrix | csc_matrix

The (annotated) data matrix of shape n_obs × n_vars. Rows correspond to cells and columns to genes.

fraction float | None (default: None)

Subsample to this fraction of the number of observations.

n_obs int | None (default: None)

Subsample to this number of observations.

random_state int | RandomState | None (default: 0)

Random seed to change subsampling.

copy bool (default: False)

If an AnnData is passed, determines whether a copy is returned.

Return type:

AnnData | tuple[ndarray | csr_array | csc_array | csr_matrix | csc_matrix, ndarray[tuple[int, ...], dtype[int64]]] | None

Returns:

Returns X[obs_indices], obs_indices if data is array-like, otherwise subsamples the passed AnnData (copy == False) or returns a subsampled copy of it (copy == True).

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