#' @title percentDifference
#' @description unknown
#' @family abysmally documented
#' @author unknown, \email{<unknown>@@dfo-mpo.gc.ca}
#' @export
percentDifference <- function(x) {
if(is.vector(x)) {
n <- length(x)
x <- x[order(x)]
v <- (x[2:n]-x[1:n-1])/((x[2:n]+x[1:n-1])/2)*100
} else {
v <- (x[,1] - x[,2]) / ((x[,1]+x[,2])/2) * 100
}
return(v)
}
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