vector_to_parameters¶

paddle.nn.utils. vector_to_parameters ( vec, parameters, name=None ) [source]

Transform a 1-D Tensor to the input parameters .

Parameters

• vec (Tensor) – A 1-D Tensor, which will be sliced and copied to the input parameters .

• parameters (Iterable[Tensor]) – Iterable Tensors that are trainable parameters of a Layer.

• name (str, optional) – The default value is None. Normally there is no need for user to set this property. For more information, please refer to Name.

Examples

>>> import paddle
>>> weight_attr = paddle.ParamAttr(initializer=paddle.nn.initializer.Constant(3.))
>>> linear1 = paddle.nn.Linear(10, 15, weight_attr)

>>> vec = paddle.nn.utils.parameters_to_vector(linear1.parameters())

>>> linear2 = paddle.nn.Linear(10, 15)
>>> # copy weight of linear1 to linear2
>>> paddle.nn.utils.vector_to_parameters(vec, linear2.parameters())
>>> print((linear1.weight == linear2.weight).all())
Tensor(shape=[], dtype=bool, place=Place(cpu), stop_gradient=True,
True)