jax.random.gumbel#

jax.random.gumbel(key, shape=(), dtype=<class 'float'>, mode=None)[source]#

Sample Gumbel random values with given shape and float dtype.

The values are distributed according to the probability density function:

\[f(x) = e^{-(x + e^{-x})}\]
Parameters:
  • key (ArrayLike) – a PRNG key used as the random key.

  • shape (Shape) – optional, a tuple of nonnegative integers representing the result shape. Default ().

  • dtype (DTypeLikeFloat) – optional, a float dtype for the returned values (default float64 if jax_enable_x64 is true, otherwise float32).

  • mode (str | None | None) – optional, “high” or “low” for how many bits to use when sampling.

Returns:

A random array with the specified shape and dtype.

Return type:

Array