logpdf_lazy_beta_binomial


function logpdf_lazy_beta_binomial(x:Expression<Integer>, n:Expression<Integer>, α:Expression<Real>, β:Expression<Real>) -> Expression<Real>

Observe a beta-binomial variate.

  • x: The variate.
  • n: Number of trials.
  • α: Shape.
  • β: Shape.

Returns: the log probability mass.