covfunc.py 文件源码

def kronDelta(X, Xstar):
    """
    Computes Kronecker delta for rows in X and Xstar.

    Parameters
    ----------
    X: np.ndarray, shape=((n, nfeatures))
        Instances.
    Xstar: np.ndarray, shape((m, nfeatures))
        Instances.

    Returns
    -------
    np.ndarray
        Kronecker delta between row pairs of `X` and `Xstar`.
    """
    return cdist(X, Xstar) < np.finfo(np.float32).eps