Amir Safari <[EMAIL PROTECTED]> writes: > > Hi R Users, I don't know how much is difficult my problem and > even it is possible to solve in R or not. Given a vector with 2000 > observations. I want to creat a new vector from that vector so > that new vector be the sum of every 5 observations sequently. That > is , each new observation is sum of every 5 sequent observations, > from the first observation of previous vector to the end. So new > vector must include 500 observations. My effort did not work in R. > Do you have any way? Thanks a lot for any help. Amir
Er, 5*500 != 2000... Did you mean "sum of 4" or "400 obs. in the new vector"? Anyways, how about colSums(matrix(myvector, nrow=5)) ? -- 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 ______________________________________________ [email protected] mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
