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Re: st: Detecting Outliers


From   Ronán Conroy <rconroy@rcsi.ie>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: Detecting Outliers
Date   Wed, 3 May 2006 15:31:14 +0100

On 2 Beal 2006, at 14:27, Raphael Fraser wrote:

my objective is simple to locate potential outliers then cross check
with patient records to ensure that the information is legitimate.
error free.
You will have to look at multivariate outliers, then. A height of 160cm is believable as is a weight of 120 Kg, but in combination they suggest error (but do not prove it). You need to think of groups of measures which, together, define outliers.

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Ronán Conroy
rconroy@rcsi.ie
+353 (0) 1 402 2431
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