poisson¶

paddle. poisson ( x, name=None ) [source]

Returns a tensor filled with random number from a Poisson Distribution.

\[out_i \sim Poisson (lambda = x_i)\]

Parameters

• x (Tensor) – A tensor with rate parameter of poisson Distribution. The data type should be bfloat16, float16, float32, float64.

• 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.

Returns

A Tensor filled with random number with the same shape and dtype as x.

Return type

Tensor

Examples

>>> import paddle
>>> paddle.set_device('cpu')
>>> paddle.seed(100)

>>> x = paddle.uniform([2,3], min=1.0, max=5.0)
>>> out = paddle.poisson(x)
>>> print(out)
>>> 
Tensor(shape=[2, 3], dtype=float32, place=Place(cpu), stop_gradient=True,
[[2., 5., 0.],
 [5., 1., 3.]])
>>>