AnnData.chunk_X(select=1000, replace=True)

Return a chunk of the data matrix X with random or specified indices.

select : int | Sequence[int] | ndarrayUnion[int, Sequence[int], ndarray] (default: 1000)

Depending on the type:


A random chunk with select rows will be returned.

sequence (e.g. a list, tuple or numpy array) of int

A chunk with these indices will be returned.

replace : boolbool (default: True)

If select is an integer then True means random sampling of indices with replacement, False without replacement.