Re: [R] Formulae for R functions

From: Charles Annis, P.E. <Charles.Annis_at_statisticalengineering.com>
Date: Tue, 12 Feb 2008 09:14:06 -0500

Richard:

Assuming that you have installed R and are not trying to find everything on the website, you can list the code of any function by just typing the function name and <enter>

You will necessarily have to read the R code, but that is much easier than it may seem when you look at a couple pages of it, as you will when you list predict.lm

Best wishes.

Charles Annis, P.E.

Charles.Annis_at_StatisticalEngineering.com phone: 561-352-9699
eFax: 614-455-3265
http://www.StatisticalEngineering.com  

-----Original Message-----
From: r-help-bounces_at_r-project.org [mailto:r-help-bounces_at_r-project.org] On Behalf Of Richard Saba
Sent: Tuesday, February 12, 2008 8:36 AM To: r-help_at_r-project.org
Subject: [R] Formulae for R functions          

Can someone direct me to a resource or resources that list the formulae used by R functions (i.e. predict.lm ) to calculate the statistic reported. I am not a programmer and studying the r code is extremely slow going. I have searched r-project.org and all the function help files without success. For example I have attempted to replicate by hand the se.fit calculation from a lm object calculated by a call to the predict function and have not been able to reproduce the results.

Thanks,

Richard Saba

Department of Economics

Auburn University

Email: sabaric_at_auburn.edu  

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