On Fri, 18 Jul 2008 11:42:09 -0700, sj <ssj1364 at gmail.com> wrote: [...] > a <- rnorm(1000, 100, 50) which( 100 < a <= 200) > of course this doesn't work but illustrates what I ma trying to do, If > anyone has suggestions I would greatly appreciate it Have a look at ?& -- Seb