"As for the standard deviation, are you sure you want this? Standard deviation only makes sense if the data are normally distributed..." --------------
-- This is false, of course. What you probably meant to say is something like: "The sample standard deviation may not tell you what you think it tells you if the underlying data are not distributed something like a normal distribution." For what the true sd for sure tells you, see e.g. Chebycheff's Thm. -- Bert Gunter Genentech ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
