factory.py 文件源码

def _randn(shape, randstate=None):
    """Shortcut for :code:`np.random.randn(*shape)`

    :param randstate: Instance of np.radom.RandomState or None (which yields
        the default np.random) (default None)

    """
    randstate = randstate if randstate is not None else np.random
    return randstate.randn(*shape)