density (original) (raw)

sklearn.utils.extmath.density(w)[source]#

Compute density of a sparse vector.

Parameters:

w{ndarray, sparse matrix}

The input data can be numpy ndarray or a sparse matrix.

Returns:

float

The density of w, between 0 and 1.

Examples

from scipy import sparse from sklearn.utils.extmath import density X = sparse.random(10, 10, density=0.25, random_state=0) density(X) 0.25

Gallery examples#