search for: akanova

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2002 Aug 22
1
Error: object is not a matrix
...ect is not a matrix ## IDENTICAL ANALYSIS WITH DIFFERENT VARIABLE NAMES DOES NOT PRODOCE ERROR: > AK.df <<- read.table("foo.data", col.names = c("Y", "P","A","B","C")) > AK.df$P <- as.factor(AK.df$P) > attach(AK.df) > AKanova.out <- aov(Y ~ A * B * C + Error(P + P:A + P:B + P:C + P:A:B + P:A:C + P:B:C + P:A:B:C), data=AK.df) I have reproduced this error in a number of ways, and the only common characteristic I can see to my actions is that the length of the call to 'aov' is always too long: either one of th...