ff10.py 文件源码

def dotProdsWithAllWindows(x, X):
    """Slide x along the columns of X and compute the dot product

    >>> x = np.array([[1, 1], [2, 2]])
    >>> X = np.arange(12).reshape((2, -1))
    >>> dotProdsWithAllWindows(x, X) # doctest: +NORMALIZE_WHITESPACE
    array([27, 33, 39, 45, 51])
    """
    return sig.correlate2d(X, x, mode='valid').flatten()