# check_cM
#' internal position check
#'
#' @param x vector of positions
#' @return index of non-numeric items
#' @author Dennis van Muijen
check_cM <- function(x) {
non_numeric <- is.na(suppressWarnings(as.numeric(as.character(x))))
which(non_numeric & !is.na(x))
}
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.