Re: [R] Smart Indexing

Mathematics > Cc: r-help@r-project.org > Subject: Re: [R] Smart Indexing > > I think you just need merge(), e.g. > > a <- data.frame(id = rep(1:3, each=3), val = rnorm(9)) > b <- data.frame(id = 1:3, set1 = LETTERS[1:3], set2 = 5:7) > > merge(a, b, by = "i

Re: [R] Smart Indexing

I think you just need merge(), e.g. a <- data.frame(id = rep(1:3, each=3), val = rnorm(9)) b <- data.frame(id = 1:3, set1 = LETTERS[1:3], set2 = 5:7) merge(a, b, by = "id") I hope it helps. Best, Dimitris On 8/9/2010 11:01 AM, Thaler, Thorn, LAUSANNE, Applied Mathematics wrote: Hi all, Su