Re: [R] adding the mean and standard deviation to boxplots

From: Bert Gunter <>
Date: Mon, 4 Feb 2008 08:46:10 -0800

"As for the standard deviation, are you sure you want this? Standard
deviation only makes sense if the data are normally distributed..."

"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. mailing list PLEASE do read the posting guide and provide commented, minimal, self-contained, reproducible code. Received on Mon 04 Feb 2008 - 16:48:07 GMT

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