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Re: st: Elimination of outliers

From   Ronan Conroy <>
To   "" <>
Subject   Re: st: Elimination of outliers
Date   Tue, 7 Jun 2011 10:32:00 +0100

Have a look at -mmregress-, SJ 9(3):439--453

On 2011 Meith 6, at 16:42, Jeff wrote:

> "Outliers and influential observations should not routinely be deleted
> or automatically down-weighted because they are not necessarily bad
> observations.  On the contrary, if they are correct, they may be the
> most informative points in the data.  For example, they may indicate
> that the data did not come from a normal population or that the model is
> not linear."  "Regression Analysis By Example", 3rd Edition, Chatterjee,
> Hadi, Price.

Ronán Conroy
Associate Professor
Division of Population Health Sciences
Royal College of Surgeons in Ireland
Beaux Lane House
Dublin 2

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