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-rw-r--r--R/seq_bayes.R23
1 files changed, 22 insertions, 1 deletions
diff --git a/R/seq_bayes.R b/R/seq_bayes.R
index d486d2b..ccc9a41 100644
--- a/R/seq_bayes.R
+++ b/R/seq_bayes.R
@@ -84,10 +84,31 @@
#' # Note that the following always holds:
#' estimate == sum(posterior$supp * posterior$pmf)
seq_bayes <- function(cases, mu, kappa = 20, post = FALSE) {
+ validate_cases(cases, min_length = 2, min_count = 0)
+ if (!is_real(mu) || mu <= 0) {
+ stop("The serial interval (`mu`) must be a number greater than 0.",
+ call. = FALSE
+ )
+ }
+ if (!is_real(kappa) || kappa < 1) {
+ stop(
+ paste("The largest value of the uniform prior (`kappa`)",
+ "must be a number greater than or equal to 1."
+ ), call. = FALSE
+ )
+ }
+ if (!identical(post, TRUE) && !identical(post, FALSE)) {
+ stop("The posterior flag (`post`) must be set to `TRUE` or `FALSE`.",
+ call. = FALSE
+ )
+ }
+
if (any(cases == 0)) {
times <- which(cases > 0)
if (length(times) < 2) {
- stop("Vector of case counts must contain at least two positive integers.")
+ stop("Case counts must contain at least two positive integers.",
+ call. = FALSE
+ )
}
cases <- cases[times]
} else {