> > Hello All: > > Can somebody tell me how to make a diagonal matrix from a vector please? > > if X is > 1 > 2 > 3 > > I need: > 1 0 0 > 0 2 0 > 0 0 3 > > Thanks alot, > Mohsen >[[alternative HTML version deleted]]
diag(c(1,2,3)) HTH Stephan Mohsen Jafarikia schrieb:>> Hello All: >> >> Can somebody tell me how to make a diagonal matrix from a vector please? >> >> if X is >> 1 >> 2 >> 3 >> >> I need: >> 1 0 0 >> 0 2 0 >> 0 0 3 >> >> Thanks alot, >> Mohsen >> > > [[alternative HTML version deleted]] > > ______________________________________________ > R-help at 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. >
Tena koe Mohsen Try diag(1:3) HTH ... Peter Alspach> -----Original Message----- > From: r-help-bounces at r-project.org > [mailto:r-help-bounces at r-project.org] On Behalf Of Mohsen Jafarikia > Sent: Friday, 8 January 2010 11:11 a.m. > To: r-help at r-project.org > Subject: [R] vector to diagonals > > > > > Hello All: > > > > Can somebody tell me how to make a diagonal matrix from a > vector please? > > > > if X is > > 1 > > 2 > > 3 > > > > I need: > > 1 0 0 > > 0 2 0 > > 0 0 3 > > > > Thanks alot, > > Mohsen > > > > [[alternative HTML version deleted]] > > ______________________________________________ > R-help at 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. >