Date: Mon, 26 Jan 1998 09:58:35 -0600
Sender: "SAS(r) Discussion" <SAS-L@UGA.CC.UGA.EDU>
From: Randal Hergesheimer <madoc@IBM.NET>
Organization: Veterans Affairs Medical Center, Houston
Subject: Patient site selection problem.
Content-Type: text/plain; charset=us-ascii; name="Problem.txt"
I am behind in work due to illness and consequently my thinking
is not too clear today. If someone can help with the following
problem I should be very happy when work ends today!
There are several hundred sites patients may go to for treatment.
I must determine the site where each individual patient goes for
treatment the most. Nothing may be left to chance, except at the
end of the program. If it is clear that all or a plurality of
visits to a site may be assigned to a specific site, that specific
site must be assigned.
In the event a patient should go to Houston ten times, to San Antonio
two times, and to Dallas ten times,that patient must be randomly
assigned to either Dallas or Houston since the most frequently used
site cannot be determined. That situation must be dealt with by
randomly assigning a location to those patients who have gone to
sites such that the most frequently occurring site cannot be