[R] Using If loop in R how to extract even and odd ids

I have 500 ids ; i want to take out even and odd ids separately and store it another data files. How can it be done in R by using *If and for loop* ?? -- View this message in context: http://r.789695.n4.nabble.com/Using-If-loop-in-R-how-to-extract-even-and-odd-ids-tp4672707.html Sent from the

Re: [R] Using If loop in R how to extract even and odd ids

Hello, Who told you you need a loop or an if? even - function(x) x %% 2 == 0 x - 1:50 idx - even(x) x[idx] Hope this helps, Rui Barradas Em 31-07-2013 08:46, ravi.raghava1 escreveu: I have 500 ids ; i want to take out even and odd ids separately and store it another data files. How can

Re: [R] Using If loop in R how to extract even and odd ids

Hi, May be this helps: set.seed(24) dat1- data.frame(ID=1:500,value=rnorm(500)) res- split(dat1,dat1$ID%%2) A.K. - Original Message - From: ravi.raghava1 ravi.ragh...@classle.co.in To: r-help@r-project.org Cc: Sent: Wednesday, July 31, 2013 3:46 AM Subject: [R] Using If loop in R how