tf.random.poisson

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Draws shape samples from each of the given Poisson distribution(s).

View aliases

Main aliases

`tf.random_poisson`

Compat aliases for migration

See Migration guide for more details.

tf.compat.v1.random.poisson, tf.compat.v1.random_poisson

tf.random.poisson(
    lam, shape, dtype=tf.dtypes.float32, seed=None, name=None
)

lam is the rate parameter describing the distribution(s).

Example:

samples = tf.random.poisson([0.5, 1.5], [10])
# samples has shape [10, 2], where each slice [:, 0] and [:, 1] represents
# the samples drawn from each distribution

samples = tf.random.poisson([12.2, 3.3], [7, 5])
# samples has shape [7, 5, 2], where each slice [:, :, 0] and [:, :, 1]
# represents the 7x5 samples drawn from each of the two distributions

Args
lam	A Tensor or Python value or N-D array of type dtype. lam provides the rate parameter(s) describing the poisson distribution(s) to sample.
shape	A 1-D integer Tensor or Python array. The shape of the output samples to be drawn per "rate"-parameterized distribution.
dtype	The type of the output: float16, float32, float64, int32 or int64.
seed	A Python integer. Used to create a random seed for the distributions. See tf.compat.v1.set_random_seed for behavior.
name	Optional name for the operation.

Returns
samples	a Tensor of shape tf.concat([shape, tf.shape(lam)], axis=0) with values of type dtype.