[R] How to split DF into a list and avoid NULL elements in this list

Hello, I'm trying to split my DF into a list using incremental loop. How can I avoid NULL elements in this list? DF - data.frame(var1 = 1:10, var2 = 11:20, var3 = 21:30, var4 = 31:40) x - list() i - 1 while (i = ncol(DF)-1) { x[[i]] - DF[, i:c(i+1)] i - i + 2 } x Many

Re: [R] How to split DF into a list and avoid NULL elements in this list

Here's one way x - sapply(seq(1,ncol(DF),by=2), function(i) DF[,i:(i+1)], simplify=F) -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Lauri Nikkinen Sent: Tuesday, November 25, 2008 9:00 AM To: [EMAIL PROTECTED] Subject: [R] How to split DF into a list