update_lazy_inverse_gamma_gamma
function update_lazy_inverse_gamma_gamma(x:Expression<Real>, k:Expression<Real>, α:Expression<Real>, β:Expression<Real>) -> (Expression<Real>, Expression<Real>)
Update the parameters of an inverse-gamma distribution with a gamma likelihood.
- x: The variate.
- k: Shape of the gamma.
- α: Prior shape of the inverse-gamma.
- β: Prior scale of the inverse-gamma.
Returns: the posterior hyperparameters α'
and β'
.