Message-ID: <BAY135-W24D0D691FADE7FD1111F04886C0@phx.gbl>
Date: 2009-04-30T16:41:28Z
From: Steve Murray
Subject: Using 'aggregate' when dependent on row value increments
In-Reply-To: <644e1f320904300920k46686985t491b67970447bf7a@mail.gmail.com>
Many thanks for the very useful responses in such a short time. I'm not a former SAS user - more a naive R user who didn't realise that a sort wasn't necessary!
Jim, your solution worked really well - thanks.
Thanks again for the great solutions.
Steve