
分类目录:《深入浅出PaddlePaddle函数》总目录
相关文章:
· 深入浅出PaddlePaddle函数——paddle.Tensor
· 深入浅出PaddlePaddle函数——s
· 深入浅出PaddlePaddle函数——s
· 深入浅出PaddlePaddle函数——paddle.full
· 深入浅出PaddlePaddle函数——s_like
· 深入浅出PaddlePaddle函数——s_like
· 深入浅出PaddlePaddle函数——paddle.full_like
创建一个形状为shape、数据类型为dtype且值全为1的Tensor。
s(shape, dtype=None, name=None)
shape:[tuple/list/Tensor] 要创建的Tensor的形状,shape的数据类型为int32或int64。dtype:[可选,np.dtype/str] 要创建的Tensor的数据类型,可以为bool、float16、float32、float64、int32 或int64。如果dtype为None,那么数据类型为float32。name:[可选,str] 具体用法请参见Name,一般无需设置,默认值为None。Tensor,每个元素都是1,形状为 shape,数据类型为dtype。
import paddle# default dtype for ones OP
data1 = s(shape=[3, 2])
# [[1. 1.]
# [1. 1.]
# [1. 1.]]data2 = s(shape=[2, 2], dtype='int32')
# [[1 1]
# [1 1]]
def ones(shape, dtype=None, name=None):"""Create a Tensor of specified :attr:`shape` and :attr:`dtype` and fill it with 1.Args:shape (tuple|list|Tensor): Shape of the Tensor to be created, the data type of shape should be int32 or int64.dtype (np.dtype|str, optional): Data type of output Tensor, it should be one ofbool, float16, float32, float64, int32 and int64. If it is set to None, the data type will be float32.name (str, optional): For details, please refer to :ref:`api_guide_Name`. Generally, no setting is required. Default: None.Returns:Tensor: A Tensor of data type :attr:`dtype` with shape :attr:`shape` and all elements are 1.Examples:.. code-block:: pythonimport paddle# default dtype for ones OPdata1 = s(shape=[3, 2])# [[1. 1.]# [1. 1.]# [1. 1.]]data2 = s(shape=[2, 2], dtype='int32')# [[1 1]# [1 1]]# shape is a Tensorshape = paddle.full(shape=[2], dtype='int32', fill_value=2)data3 = s(shape=shape, dtype='int32')# [[1 1]# [1 1]]"""if dtype is None:dtype = 'float32'return fill_constant(value=1.0, shape=shape, dtype=dtype, name=name)
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