[R] Limited number of replicates in qcc()?

std.dev)) } else { if (!is.numeric(std.dev)) stop("if provided the argument 'std.dev' must be a method available or a numerical value. See help(qcc).") } } I do not really see what this do.call()-function does and what is the function

[R] Writing .xlsx files

be how it works (the user manual did not help me very much). -- Katrien Baert Statistical Consultant IOF valorisatieconsortium Stat-Gent T 32 9 264 47 66 http://www.statgent.org/ __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listi

[R] Confidence interval for the coefficient of variation

Dear, We are trying to determine the (one-sided) CI for the coefficient of variation in a small sample (say n = 10), with mean 100 and standard deviation 21. It appears though that the R-function ci.cv() and our simulation do not agree. The R-code: library(MBESS) n = 10 ci.cv(mean = 100, sd = 2