Dear Peter,
See ?vcov. You could have discovered this via
help.search("covariance").
I hope this helps,
John
On Mon, 29 Oct 2007 11:30:11 -0600
"Peter B. Mandeville" <[EMAIL PROTECTED]> wrote:
> Greetings,
>
>
>
> Cohen, Cohen, West, and Aiken 2003 (Applied Multiple
> Regression-Correlation
> Analysis for the Behavioral Sciences, Third Edition) on page 273
> state the
> covariance matrix of the regression coefficients is provided by
> standard
> programs for multiple regression, including SAS, SPSS, and SYSTAT.
> How can
> it be calculated with R. Thank you very much.
>
>
>
> pbm
>
>
>
> Peter B. Mandeville
>
> cel: 444 860 3204
>
> tel: 52 444 826 2346-49 ext 532
>
> fax: 52 444 826 2350
>
>
>
> P.D. Favor de confirmar la llegada de este correo. Gracias.
>
>
>
>
> [[alternative HTML version deleted]]
>
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--------------------------------
John Fox, Professor
Department of Sociology
McMaster University
Hamilton, Ontario, Canada
http://socserv.mcmaster.ca/jfox/
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