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mod_okay
2007 Jun 14
0
Confidence interval for coefficient of variation
...confidence
interval for a coefficient of variation. The code is based on a paper
by Mark Vangel in The American Statistician. I have not used the
function much, but it could be useful for comparing cv's from
different groups.
Kevin Wright
confint.cv <- function(x,alpha=.05, method="modmckay"){
# Calculate the confidence interval of the cv of the vector x
# Author: Kevin Wright
# See: Vangel, Mark. Confidence Intervals for a Normal Coefficient
# of Variation. American Statistician, Vol 15, No1, p. 21--26.
# x <- c(326,302,307,299,329)
# confint.cv(x,.05,"modmc...