kernel.py 文件源码

def _prep_X_Y_for_cython(X, Y):
    X, Y = check_pairwise_arrays(X, Y)
    X, Y = X.astype(np.double, order='C'), Y.astype(np.double, order='C').T  # transposing Y here!
    res = np.zeros((X.shape[0], Y.shape[1]), dtype=X.dtype)
    return X, Y, res


# Cython proxies