Standard error of mean for aov
On Dec 12, 2008, at 10:59 PM, JS.Augustyn at gmail.com wrote:
Hi all, I'm quite new to R and have a very basic question regarding how one gets the standard error of the mean for factor levels under aov. I was able to get the factor level means using: summary(print(model.tables(rawfixtimedata.aov,"means"),digits=3)), where rawfixtimedata.aov is my aov model. It doesn't appear that there is an equivalent function to get the standard errors for the factor levels. I searched through the help archives and documentation but could not find anything that would help resolve my problem. I'm sure there is a trivial solution, but I would sincerely appreciate having someone more expert dispel my ignorance.
Have you looked at the help page for model.tables? ... and perhaps ? se.contrast There are arguments to that function that result in standard errors for _effects_. If standard errors on the contrasts are not what you wanted, then perhaps a full example would help.
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