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

Xarray of shape (n_samples_1, n_features)

Yarray of shape (n_samples_2, n_features)

dense_outputboolean (optional), 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 matrixarray of shape (n_samples_1, n_samples_2)