Dear all, Sorry to bother you with such a stupid question, but I just cannot find the solution to my problem.
I'd like to use matrix multiplication for meanA and factorial 3. I use the command meanA%*%factorial 3. But everything I get is: Error in factorial3 %*% A : non-conformable arguments I know that the number of the columns of the first vector has to be the same number of rows of the second vector to be able to use matrix multiplication, but that is the case here. I also tried it with two columns for factorial 3 and that didnt work either. Can someone help me out with this?' these are my matrices: meanA [,1] [,2] [1,] 3.666667 4.666667 > factorial3 [,1] [1,] 1 Thank you so much! Cheers, maria -- View this message in context: http://r.789695.n4.nabble.com/matrix-multiplication-tp3895833p3895833.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.