scglue.num.pcc_mat

scglue.num.pcc_mat(X, Y=None)[source]

Pearson’s correlation coefficient (sparse friendly)

Parameters

X (typing.Union[numpy.ndarray, scipy.sparse._base.spmatrix]) – First design matrix
Y (typing.Union[numpy.ndarray, scipy.sparse._base.spmatrix, None]) – Second design matrix (optional)

Return type

numpy.ndarray

Returns

pcc – Pearson’s correlation matrix among columns of X, if only X is given. Pearson’s correlation matrix between columns of X and columns of Y, if both X and Y are given.