logpdf_lazy_beta_negative_binomial


function logpdf_lazy_beta_negative_binomial(x:Expression<Integer>, k:Expression<Integer>, α:Expression<Real>, β:Expression<Real>) -> Expression<Real>

Observe a beta-negative-binomial variate

  • x: The variate.
  • k: Number of successes.
  • α: Shape.
  • β: Shape.

Returns: the log probability mass.