#' @param formula,data,subset Same as \code{\link[<%= pkg %>]{<%= pkgfun %>}}, 
#'   but \emph{we strongly advise against omitting the \code{data}
#'   argument}. Unless \code{data} is specified (and is a data frame) many
#'   post-estimation functions (including \code{update}, \code{loo},
#'   \code{kfold}) are not guaranteed to work properly.
