[R] help for bootstrap of backward stepwise logistic regression

From: Giuseppe Biondi Zoccai <gbiondizoccai_at_gmail.com>
Date: Sun 08 May 2005 - 03:52:55 EST


I would like to perform a bootstrap validation of a backward stepwise logistic regression analysis, but I am a beginner with R and I am not sure of how to do it.
Is there anyone that can send me a sample file in tab format (that I can modify in Excel by pasting my data) and the pertinent R algorithm? Many thanks
Giuseppe

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Dr. Giuseppe Biondi Zoccai Interventional Cardiology Unit St Raffaele Hospital via Olgettina 60 20132 Milan ITALY Phone: +39-3408626829 Fax: +39-0226437339 Email: gbiondizoccai@gmail.com
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Received on Sun May 08 03:58:57 2005

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