sklearn.utils.sparsefuncs.inplace_column_scale

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

Inplace column scaling of a CSC/CSR matrix.

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

Parameters:	X : CSC or CSR matrix with shape (n_samples, n_features) Matrix to normalize using the variance of the features. scale : float array with shape (n_features,) Array of precomputed feature-wise values to use for scaling.