[R] split and subset

Dear list: I ask for your help in a simple problem in which I'm not figuring out the solution My data looks like: dat- data.frame(date=c(12/12/1980, 03/11/1994, 15/11/1999, 31/10/2000, 20/03/2007, 05/01/2001), var1=c(A, A, B, D, C, A), var2=runif(6)) I was wondering if I could split the column

Re: [R] split and subset

Try this: subset(dat, format(date, %Y-%m) == 1999-11) On Tue, May 6, 2008 at 12:25 PM, [EMAIL PROTECTED] wrote: Dear list: I ask for your help in a simple problem in which I'm not figuring out the solution My data looks like: dat- data.frame(date=c(12/12/1980, 03/11/1994, 15/11/1999,