https://github.com/cran/IQCC
Tip revision: 5c6e6dea621fd5b486441c5e649098ad5a6549e6 authored by Flavio Barros on 15 November 2017, 21:16:12 UTC
version 0.7
version 0.7
Tip revision: 5c6e6de
c4.R
#' C4 Constant.
#'
#' This function is used to calculate the bias correction constant c4 for the
#' sample standard deviation statistic.
#'
#' It is used to correct the bias for small sample sizes in the sample standard
#' deviation statistic.
#'
#' @param n The sample size.
#' @return Return the value of c4 for a given sample size n.
#' @export
#' @author Daniela R. Recchia, Emanuel P. Barbosa
#' @seealso \link{d2},\link{d3}
#' @examples
#'
#' c4(5)
#'
c4 <- function(n)
{
c <- (sqrt(2 / (n-1))) * (gamma(n/2) / gamma((n-1) / 2))
return(c)
}