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Date:         Wed, 1 May 1996 14:33:24 -0500
Sender:       "SAS(r) Discussion" <SAS-L@UGA.CC.UGA.EDU>
Subject:      Re: Stratification Index
In-Reply-To:  <"Stratification

One way to avoid sorting is if you know all the possible values X can have and hardcode them into separate counters; i.e. If X = 1 then count1 = count1 + 1; If X = 2 then count2 = count2 + 1; If X = 13.7 then count137 = count137 + 1; etc. then just look at the last observation of your output and deal with the counters. Otherwise it looks like a case for sorting by X and using first.x and last.x.

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