jax.random.ball#

jax.random.ball(key, d, p=2, shape=(), dtype=<class 'float'>)[source]#

Sample uniformly from the unit Lp ball.

Reference: https://arxiv.org/abs/math/0503650.

Parameters:

  • key (Union[Array, ndarray, bool_, number, bool, int, float, complex]) – a PRNG key used as the random key.

  • d (int) – a nonnegative int representing the dimensionality of the ball.

  • p (float) – a float representing the p parameter of the Lp norm.

  • shape (Sequence[int]) – optional, the batch dimensions of the result. Default ().

  • dtype (Union[str, type[Any], dtype, SupportsDType]) – optional, a float dtype for the returned values (default float64 if jax_enable_x64 is true, otherwise float32).

Returns:

A random array of shape (*shape, d) and specified dtype.