A Ezhil <[EMAIL PROTECTED]> writes: > Hi, > > I am new to R programming. I have a 992 x 74 matrix. I > would like to form a new matrix by averging each 4 > rows > from the original one. How can I use 'apply' instead > of usual mean inside the nested for loop?
How about dim(M) <- c(4,248,74) mn <- apply(M, c(2,3), mean) (Yes, this is a bit confusing and easy to get wrong...) -- O__ ---- Peter Dalgaard Øster Farimagsgade 5, Entr.B c/ /'_ --- Dept. of Biostatistics PO Box 2099, 1014 Cph. K (*) \(*) -- University of Copenhagen Denmark Ph: (+45) 35327918 ~~~~~~~~~~ - ([EMAIL PROTECTED]) FAX: (+45) 35327907 ______________________________________________ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
