[R] FW: logistic regression

Darin Brooks kfmgis at telus.net
Sun Sep 28 01:24:26 CEST 2008

Glad you were amused.

I assume that "booking this as a fortune" means that this was an idiotic way
to model the data?

MARS?  Boosted Regression Trees?  Any of these a better choice to extract
significant predictors (from a list of about 44) for a measured dependent

-----Original Message-----
From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-project.org] On
Behalf Of Ted Harding
Sent: Saturday, September 27, 2008 4:30 PM
To: r-help at stat.math.ethz.ch
Subject: Re: [R] FW: logistic regression

On 27-Sep-08 21:45:23, Dieter Menne wrote:
> Frank E Harrell Jr <f.harrell <at> vanderbilt.edu> writes:
>> Estimates from this model (and especially standard errors and
>> P-values)
>> will be invalid because they do not take into account the stepwise 
>> procedure above that was used to torture the data until they 
>> confessed.
>> Frank
> Please book this as a fortune.
> Dieter


E-Mail: (Ted Harding) <Ted.Harding at manchester.ac.uk>
Fax-to-email: +44 (0)870 094 0861
Date: 27-Sep-08                                       Time: 23:30:19
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6:55 PM

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