It is not clear exactly what you want to do by subtracting a vector from a matrix, but look at the "sweep" function, it may do what you want.
-- Gregory (Greg) L. Snow Ph.D. Statistical Data Center Intermountain Healthcare [EMAIL PROTECTED] (801) 408-8111 > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of William Simpson > Sent: Wednesday, April 23, 2008 4:59 AM > To: Philipp Pagel > Cc: r-help@r-project.org > Subject: Re: [R] g(x,y) = f(x,y) - e(x)- e(y)? > > Thanks Phipp very much for your help. I had meant, given that > I'd computed the matrix f[x,y] and the vector e[x], how to > take the difference. What is confusing is how to subtract a > vector from a matrix. I don't want the recycling rule. > > Cheers > Bill > > On Tue, Apr 22, 2008 at 9:53 AM, Philipp Pagel > <[EMAIL PROTECTED]> wrote: > > > > > g(x,y) = f(x,y) - e(x)- e(y) > > > These are continuous functions. I am not sure how to do > this with > > the > discrete equivalents in R. > > > > Is this what you are looking for? > > > > g <- function(x, y) { > > > > f(x,y) - e(x) - e(y) > > } > > > > cu > > Philipp > > > > -- > > Dr. Philipp Pagel > > Lehrstuhl für Genomorientierte Bioinformatik Technische > Universität > > München Wissenschaftszentrum Weihenstephan 85350 > Freising, Germany > > http://mips.gsf.de/staff/pagel > > > > ______________________________________________ > > 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. > ______________________________________________ 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.
