Debbie Zhang schrieb: > Now, I am trying to obtain the sample variance (S^2) of the 1000 samples that > I have generated before. > > I am wondering what command I should use in order to get the sample variance > for all the 1000 samples. > > > > What I am capable of doing now is just typing in > > var(z[[1]]) > > var(z[[2]])..................... > > > > Common please use the package brain 2.0. What is the difference between this and what you already had here (???): >> for(i in 1:n){ >> x[[i]]=rnorm(i,0,1) >> } >>
hint: its only a small change. Please do some introductionary exercises. You find plenty of material here: http://cran.r-project.org/manuals.html and here: http://cran.r-project.org/other-docs.html Stefan ______________________________________________ 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.