Create an object representing a possibly multivariate normal prior distribution
pr_normal(mean = 0, precision = 0, labels = NULL)
An environment representing the specified prior, for internal use.
scalar or vector mean parameter.
scalar, vector or matrix precision parameter.
optional character vector with coefficient labels. If specified,
it should have the same size of at least one of mean
and precision
,
and in that case the normal prior with these parameters is assigned to these coefficients,
while any coefficients not present in labels will be assigned a non-informative
prior with mean 0 and precision 0.