sklearn.utils.sparsefuncs.inplace_row_scale

sklearn.utils.sparsefuncs.inplace_row_scale(X, scale) [source]

Inplace row scaling of a CSR or CSC matrix.

Scale each row of the data matrix by multiplying with specific scale provided by the caller assuming a (n_samples, n_features) shape.

Parameters

Xsparse matrix of shape (n_samples, n_features)

Matrix to be scaled. It should be of CSR or CSC format.

scalendarray of shape (n_features,), dtype={np.float32, np.float64}

Array of precomputed sample-wise values to use for scaling.