sklearn.metrics.pairwise.linear_kernel

sklearn.metrics.pairwise.linear_kernel(X, Y=None, dense_output=True)[source]

Compute the linear kernel between X and Y.

Read more in the User Guide.

Parameters
Xndarray of shape (n_samples_X, n_features)
Yndarray of shape (n_samples_Y, n_features), default=None

If None, uses Y=X.

dense_outputbool, default=True

Whether to return dense output even when the input is sparse. If False, the output is sparse if both input arrays are sparse.

New in version 0.20.

Returns
Gram matrixndarray of shape (n_samples_X, n_samples_Y)