blocks_utils.py 文件源码

def shared_like(variable, name=None):
    """Construct a shared variable to hold the value of a tensor variable.

    Parameters
    ----------
    variable : :class:`~tensor.TensorVariable`
        The variable whose dtype and ndim will be used to construct
        the new shared variable.
    name : :obj:`str` or :obj:`None`
        The name of the shared variable. If None, the name is determined
        based on variable's name.

    """
    variable = tensor.as_tensor_variable(variable)
    if name is None:
        name = "shared_{}".format(variable.name)
    return theano.shared(numpy.zeros((0,) * variable.ndim,
                                     dtype=variable.dtype),
                         name=name)