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biodiversity-metrics/R/entropy.R

24 lines
384 B
R

#' @author Eric Coissac
#' @export
H.q = function(x,q=1) {
sum(x * log.q(1/x,q),na.rm = TRUE)
}
#' @author Eric Coissac
#' @export
D.q = function(x,q=1) {
exp.q(H.q(x,q),q)
}
#' @author Eric Coissac
#' @export
H.spectrum = function(x,q=1) {
sapply(q,function(Q) H.q(x,Q))
}
#' @author Eric Coissac
#' @export
D.spectrum = function(x,q=1) {
sapply(q,function(Q) D.q(x,Q))
}