sklearn.feature_selection.f_regression

sklearn.feature_selection.f_regression(X, y, center=True)

Univariate linear regression tests

Quick linear model for testing the effect of a single regressor, sequentially for many regressors.

This is done in 3 steps: 1. the regressor of interest and the data are orthogonalized wrt constant regressors 2. the cross correlation between data and regressors is computed 3. it is converted to an F score then to a p-value

Parameters :

X : {array-like, sparse matrix} shape = (n_samples, n_features)

The set of regressors that will tested sequentially.

y : array of shape(n_samples).

The data matrix

center : True, bool,

If true, X and y will be centered.

Returns :

F : array, shape=(n_features,)

F values of features.

pval : array, shape=(n_features,)

p-values of F-scores.