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2009 May 22
1
anova leads to an error
Dear R-list, the following code had been running well over the last months: exam <- matrix(rnorm(100,0,1), 10, 10) gg <- factor(c(rep("A", 5), rep("B", 5))) mlmfit <- lm(exam ~ 1); mlmfitG <- lm(exam ~ gg) result <- anova(mlmfitG, mlmfit, X=~0, M=~1) Until, all of a sudden the following error occured: Fehler in apply(abs(sapply(deltassd, function(X) diag((T %*% X %*% t(T))))), : dim(X) must have a positive length I have not kept track of the changes in my R-versio...