Recycle a family's arguments to one value per parameter

prior_gamma(shape = c(2, 3), rate = 1) is two parameters with a shared rate, and prior_gamma(shape = c(2, 3), rate = c(1, 2, 3)) is a mistake. The longest argument sets the number of parameters and every other one has to be that length or length 1, which is prior_normal()'s rule for sd generalized to families with more than one parameter.

Usage

recycle_family_args(args, fname)

Arguments

args

Named list of numeric vectors.

fname

Constructor name, for the error message.

Value

args, each entry a length-d double vector without names.