will this do it: > x <- read.table(text = "X1 X2 X3 + 1 3 5 + 2 4 6 + 3 6 1", header = TRUE) > x X1 X2 X3 1 1 3 5 2 2 4 6 3 3 6 1 > apply(x, 1, function(a) 6 * a[1] + 7 * a[2] + 8 * a[3]) [1] 67 88 68 > >
On Wed, Nov 30, 2011 at 8:10 AM, arunkumar1111 <akpbond...@gmail.com> wrote: > Hi > > I have a data-frame which look like this > > X1 X2 X3 > 1 3 5 > 2 4 6 > 3 6 1 > > I want to apply a formula Y=6*X1 + 7*X2 + 8*X3 for every row > > > Thanks in Advance > > > > > > > > -- > View this message in context: > http://r.789695.n4.nabble.com/how-to-call-a-function-for-each-row-tp4122906p4122906.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. -- Jim Holtman Data Munger Guru What is the problem that you are trying to solve? Tell me what you want to do, not how you want to do it. ______________________________________________ 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.
