Thanks for your reply. Your solution is ok for this particular definition of bi = a * i . However I was looking for more general solution, like : bi = a *a*a*....(i-times)
Is there any better idea? Thanks and regards, Greg Snow-2 wrote: > > Does this help point you in a useful direction? > >> a <- matrix(1:9, 3) * 10 >> b <- matrix(1:9, 3) >> kronecker(b,a) > > > > -- > Gregory (Greg) L. Snow Ph.D. > Statistical Data Center > Intermountain Healthcare > [EMAIL PROTECTED] > 801.408.8111 > > >> -----Original Message----- >> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] >> project.org] On Behalf Of megh >> Sent: Wednesday, October 22, 2008 3:22 AM >> To: r-help@r-project.org >> Subject: [R] A matrix automation problem >> >> >> [I am really sorry if it is double posted, I doubt me previous post >> could not >> reach forum due to some problem with net] >> >> Suppose I have a matrix : >> >> a = matrix(1:9, 3) >> >> >From this matrix, I construct 9 additional matrices : >> >> i = 1:9 >> bi = a * i >> >> Now combining all those 9 new matrices, I construct a final metrix as : >> >> c = >> >> b1 b4 b7 >> b2 b5 b8 >> b3 b6 b8 >> >> I want to automate this procedure for any arbitrary number "i" >> >> Can anyone please help me how to do that? >> >> Rgd, >> >> >> -- >> View this message in context: http://www.nabble.com/A-matrix- >> automation-problem-tp20106932p20106932.html >> Sent from the R help mailing list archive at Nabble.com. >> >> ______________________________________________ >> 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. > > -- View this message in context: http://www.nabble.com/A-matrix-automation-problem-tp20106932p20123993.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ 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.
