[R] Outliers

From: Richard A. O'Keefe <ok_at_cs.otago.ac.nz>
Date: Mon 05 Jul 2004 - 10:41:58 EST

Last week there was a thread on outlier detection. I came across an article which has a very interesting paragraph.

The article is

    Missing Values, Outliers, Robust Statistics, & Non-parametric Methods     by Shaun Burke, RHM Techology Ltd, High Wycombe, Buckinghamshire, UK. It was the fourth article in a series which appeared in

    Scientific Data Management
in 1998 and 1998.

The very interesting paragraph is this:

    NB: It should be noted that following a     judgement in a US court, the Food and     Drug Administration 9FDA) in a guide -     Guide to inspection of pharmaceutical     quality control laboratories - has
    specifically prohibited the use of outlier     tests.

Elsewhere, the article recommends the use of outlier tests as a way of locating possible transcription errors, but NOT as a way of discarding data.

R-help@stat.math.ethz.ch mailing list
https://www.stat.math.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html Received on Mon Jul 05 10:46:57 2004

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