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#' Check Proportions
#'
#' Checks if x is proportions vector - non-missing dbls between 0 and 1 that sum to 1.
#'
#' @param x The object to check.
#' @param x_name A string of the name of the object.
#' @param error A flag indicating whether to throw an informative error or immediately generate an informative message if the check fails.
#' @return An invisible copy of x (if it doesn't throw an error).
#' @export
check_props <- function(x, x_name = substitute(x),
error = TRUE) {
.Deprecated()
x_name <- chk_deparse(x_name)
check_flag_internal(error)
check_vector(x, values = c(0,1), x_name = x_name, error = error)
if(sum(x) != 1) {
chk_fail("values of ", x_name, " must sum to 1 (not ", sum(x),")", error = error)
}
invisible(x)
}
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