Dear Rajdl
I google I typed "[R] ANOVA repeated measures" and I found several good references. Please try to do some research before posting a question.
Anyhow, you might want to try ?lme or ?aov and look for the "error" parameter" (if you want to use an "old schoool" method)
Cheers
Francisco
From: "Rajdl Daniel" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Subject: [R] ANOVA with repeated measurements (Dan Rajdl) Date: Thu, 5 Aug 2004 17:29:09 +0200
Dear R-users, I have some human serum lipid concentrations (cholesterol, apoB ...), each lipid was measured (in the same person) for 6 times in different time points (start, 3 months, 6 months, 12 months, 18 months, 24 months). There were 2 groups of participants: one with a nutritional intervention and the other without it. I would like to know, whether lipid concentrations differ among different time points and between the 2 groups. Could anyone advise me, please, what method and how should I usein R? Or redirect me, please, to a source, where I can find the answer. Thank you, Dan Rajdl Dpt.Clin.Chem.Biochem.Hematol, Univ.Hosp.in Pilsen, Czech Republic
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