On 11/01/2008, Lauri Nikkinen <[EMAIL PROTECTED]> wrote: > Thanks, one further question: how to order these matrices using these row > sums? > > lapply(a, function(x) order(x[,5])) #produces only indeces
...which you can use as row indices 'idxs' to reorder the rows of matrix 'x' by x[idxs,]. /Henrik > > -Lauri > > 2008/1/11, Henrique Dallazuanna <[EMAIL PROTECTED]>: > > lapply(a, addmargins, 2) > > > > On 11/01/2008, Lauri Nikkinen <[EMAIL PROTECTED]> wrote: > > > Hi R-users, > > > > > > I have a list > > > > > > a <- list(one=matrix(rnorm(20), 5, 4), two=matrix(rnorm(20, 3, 0.5),5,4)) > > > > > > How to add rowSums (calculated using lapply) to corresponding matrix > > > in this list > > > > > > lapply(a, function(x) rowSums(x)) > > > > > > ?? > > > > > > -Lauri > > > > > > ______________________________________________ > > > 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. > > > > > > > > > -- > > Henrique Dallazuanna > > Curitiba-Paraná-Brasil > > 25° 25' 40" S 49° 16' 22" O > > > > ______________________________________________ > 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. > ______________________________________________ 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.
