Dear All, I would like to use a nonparametric bootstrap to calculate the confidence intervals for the 5% and 95% quantiles using boot.ci. As you know, boot.ci requires the use of boot to generate bootstrap replicates for my statistic. However this last function doesn't work in my case because I am missing something. Here is an example y <- rnorm(100) Quantile <- function(df) { quantile(df, probs=c(0.05,0.95)) } boot.out <- boot(y,Quantile, R=999, sim="ordinary") Error in statistic(data, original, ...) : unused argument(s) (c(1, 2, 3, 4, 5, 6, 7, 8 I think that it's due to another parameter (stype) that I have not included but I don't know what this paremeter represents. Many thanks for any suggestion. Bernard
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