Re: [R] shapiro wilk normality test

From: Frank E Harrell Jr <>
Date: Sun, 13 Jul 2008 13:07:37 -0500

(Ted Harding) wrote:
> On 13-Jul-08 13:29:13, Frank E Harrell Jr wrote:

>> [...]
>> A large P-value means nothing more than needing more data.  No 
>> conclusion is possible.  Please read the classic paper Absence of 
>> Evidence is not Evidence for Absence.

> Is that ironic, Frank, or is there really a "classic paper" with
> that title? If so, I'd be pleased to have a reference to it!
> Thanks,
> Ted.

It's real. Full text is available to all:

It's one of the dozens of gems in the short statistics notes series in the British Medical Journal.


Frank E Harrell Jr   Professor and Chair           School of Medicine
                      Department of Biostatistics   Vanderbilt University

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