You can find the layout of data for repeated measuremnt ANOVA in examples from UCLA computing page: http://www.ats.ucla.edu/stat/R/seminars/Repeated_Measures/repeated_measures.htm -- View this message in context: http://r.789695.n4.nabble.com/repeated-measurements-ANOVA-tp2530368p2530600.html Sent from the R help mailing list archive at Nabble.com.