One entry per family: the parameter names in Stan's order, the R
density/CDF/quantile trio behind them, and the natural support. Everything
else in this file is generic over that entry, which is why registering a
family is all it takes for prior_truncated() to renormalize it and for
stan_code() to write it out.
Arguments
- family
Family name, or anything else to get NULL back.
Value
A list, or NULL for an unregistered name.
Details
The d, p and q functions are always called with the value positionally
and the distribution parameters by name, since R spells the first argument
x, q and p in turn while the parameters keep their names throughout.
