#'
#' @param cases Vector of case counts. The vector must be of length at least two
#' and only contain positive integers.
-#' @param mu Mean of the serial distribution. This must be a positive number or
-#' `NA`. If a number is specified, the value should match the case counts in
-#' time units. For example, if case counts are weekly and the serial
-#' distribution has a mean of seven days, then `mu` should be set to `1`. If
-#' case counts are daily and the serial distribution has a mean of seven days,
-#' then `mu` should be set to `7`.
+#' @param mu Mean of the serial distribution (defaults to `NA`). This must be a
+#' positive number or `NA`. If a number is specified, the value should match
+#' the case counts in time units. For example, if case counts are weekly and
+#' the serial distribution has a mean of seven days, then `mu` should be set
+#' to `1`. If case counts are daily and the serial distribution has a mean of
+#' seven days, then `mu` should be set to `7`.
#' @param serial Whether to return the estimated serial distribution in addition
-#' to the estimate of R0. This must be a value identical to `TRUE` or `FALSE`.
+#' to the estimate of R0 (defaults to `FALSE`). This must be a value identical
+#' to `TRUE` or `FALSE`.
#' @param grid_length The length of the grid in the grid search (defaults to
#' 100). This must be a positive integer. It will only be used if `mu` is set
#' to `NA`. The grid search will go through all combinations of the shape and
#' Otherwise, if `serial` is identical to `FALSE`, only the estimate of R0 is
#' returned.
#'
-#' @references
-#' [White and Pagano (Statistics in Medicine, 2008)](
+#' @references [White and Pagano (Statistics in Medicine, 2008)](
#' https://doi.org/10.1002/sim.3136)
#'
+#' @seealso `vignette("wp_serial", package="Rnaught")` for examples of using the
+#' serial distribution.
+#'
#' @importFrom stats pgamma qgamma
#'
#' @export