Try:

 summary(lm.D9)[["coefficients"]][,2]

On Fri, Apr 25, 2008 at 10:55 AM, Uli Kleinwechter <
ulikleinwechter@yahoo.com.mx> wrote:

> Dear all,
>
> Hope this question is not too trivial...
>
> In order to correct standard errors from an estimation of a fixed
> effects regression model y need to extract the vector of standard errors
> of the coefficients of a simple linear model estimated using
>
> lm(var1~var2+var3+var4)
>
> Unfortunately I can't find out the corresponding function.
>
> Thank you very much for your help.
>
> Uli
>
>
>
> --
> Uli Kleinwechter
> Department of Agricultural Economics and Social Sciences
> Faculty of Agriculture and Horticulture
> Humboldt University of Berlin
> Unter den Linden 6
> D-10099 Berlin, Germany
> Phone: (+49) 30 2093 6124, Fax. (+49) 30 2093 6301
> E-mail: uli.kleinwechter@agrar.hu-berlin.de
>
> ______________________________________________
> R-help@r-project.org mailing list
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> PLEASE do read the posting guide
> http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>



-- 
Henrique Dallazuanna
Curitiba-Paraná-Brasil
25° 25' 40" S 49° 16' 22" O

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