On 17-09-2012, at 07:31, Jha, Ashutosh Kumar wrote: > Dear Berend, > > No need to devide what all you need a indentity matrix with same dimesion. > Following is one way to achieve this. > > mat<-matrix(1,ncol=ncol(mat),nrow=nrow(mat)).
That is not an identity matrix. It is a matrix with all elements equal to 1. An identity matrix has 1 on the diagonal and 0 elsewhere and is created by diag(..) The OP asked about divide and the answer I gave was geared to that specific question. Of course if the result is a constant value for all elements a simple matrix(...) will also do. Berend > > Regards > Ashutosh > > > On Monday, 17-09-2012 on 10:58 Berend Hasselman wrote: > On 17-09-2012, at 06:50, s.s.m. fauzi wrote: > > > Hi, > > > > I have a matrix as below: > > > > mat= > > [,1] [,2] [,3] > > [1,] 1 4 7 > > [2,] 2 5 8 > > [3,] 3 6 9 > > > > What I want to do is, I would like to divide each column with its own > > value, in order to get value 1. > > Is there any simple script for that? > > mat/mat > > Berend > > ______________________________________________ > 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.
