Hello, I am a little out of date and am still using S-Plus instead of R. I haven't been able to find the right place to ask this question, so I thought I would ask it here and hope that someone can help. I am unable to located the TukeyHSD() function in S-Plus. I have been able to use the GUI to run Tukey's test, but the results don't provide a p-value. Does anyone know how I can go about obtaining or calculating a p-value for Tukey's test using S-Plus? Thank you! _________________________________________________________________ Hotmail is redefining busy with tools for the New Busy. Get more from your inbox. N:WL:en-US:WM_HMP:042010_2 [[alternative HTML version deleted]]