clipppy.utils.distributions.extra_delta

Module Contents

class clipppy.utils.distributions.extra_delta.ExtraDelta(*args, extra_event_dim: int, **kwargs)

Degenerate discrete distribution (a single point).

Discrete distribution that assigns probability one to the single element in its support. Delta distribution parameterized by a random choice should not be used with MCMC based inference, as doing so produces incorrect results.

Parameters

  • v (torch.Tensor) – The single support element.

  • log_density (torch.Tensor) – An optional density for this Delta. This is useful to keep the class of Delta distributions closed under differentiable transformation.

  • event_dim (int) – Optional event dimension, defaults to zero.

log_prob(self, x)

Returns the log of the probability density/mass function evaluated at value.

Args:

value (Tensor):