sklearn.metrics.pairwise
.rbf_kernel¶
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sklearn.metrics.pairwise.
rbf_kernel
(X, Y=None, gamma=None)[source]¶ Compute the rbf (gaussian) kernel between X and Y:
K(x, y) = exp(-gamma ||x-y||^2)
for each pair of rows x in X and y in Y.
Read more in the User Guide.
Parameters: X : array of shape (n_samples_X, n_features)
Y : array of shape (n_samples_Y, n_features)
gamma : float
Returns: kernel_matrix : array of shape (n_samples_X, n_samples_Y)