https://github.com/cran/robCompositions
Tip revision: 6cf109eab116e889a3e3bcc1309cbdcc254895e8 authored by Matthias Templ on 25 August 2023, 15:30:06 UTC
version 2.4.1
version 2.4.1
Tip revision: 6cf109e
rSDev.R
#' Relative simplicial deviance
#'
#' @param x a propability table
#' @param y an interaction table
#' @author Matthias Templ
#' @return The relative simplicial deviance
#' @references
#' Egozcue, J.J., Pawlowsky-Glahn, V., Templ, M., Hron, K. (2015)
#' Independence in contingency tables using simplicial geometry.
#' \emph{Communications in Statistics - Theory and Methods}, 44 (18), 3978--3996.
#'
#' @export
#' @examples
#' data(precipitation)
#' tabprob <- prop.table(precipitation)
#' tabind <- indTab(precipitation)
#' tabint <- intTab(tabprob, tabind)
#' rSDev(tabprob, tabint$intTab)
rSDev <- function(x, y){
## x ... probability table
# ## y ... interaction table
## y ... independence table
### TODO: use the SDev of the interaction divided by the SDev of x
### --> to be correct for arithmetic marginals
(SDev(x) - SDev(y)) / SDev(x)
}