Here is a quick and dirty way:

>param.se<-summary(Cand,models[[5]])$tTable[,2]

Use the str() function to explore the various components of the lme list
object.

-Nathan

On Thu, Jan 31, 2013 at 6:00 AM, <r-sig-ecology-request@r-project.org>wrote:

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>    1. extractng coef SE in lme (Kristen Gorman)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Wed, 30 Jan 2013 12:16:13 -0800 (PST)
> From: Kristen Gorman <kgorman@sfu.ca>
> To: "r-sig-ecology " <r-sig-ecology@r-project.org>
> Subject: [R-sig-eco] extractng coef SE in lme
> Message-ID:
>         <707825293.1677276.1359576973629.JavaMail.root@jaguar8.sfu.ca>
> Content-Type: text/plain; charset=utf-8
>
> Dear all,
> I am trying to extract the Std.Error of the coef value (Value) in lme
> models to produce model averaged parameter and variance estimates. See code
> below:
>
> > Cand.models[[5]]<- lme(delta.15.N~Spp + Year.2 + Spp*Year.2,
> random=~1|Nest, data=Cks.D5.PAL.INS.DataSet.Sub1, method="ML")
> > summary(Cand.models[[5]])
> Linear mixed-effects model fit by maximum likelihood
>  Data: Cks.D5.PAL.INS.DataSet.Sub1
>        AIC      BIC    logLik
>   408.6659 446.1448 -193.3329
>
> Random effects:
>  Formula: ~1 | Nest
>         (Intercept) Residual
> StdDev:   0.5284209  0.37663
>
> Fixed effects: delta.15.N ~ Spp + Year.2 + Spp * Year.2
>                     Value Std.Error  DF  t-value p-value
> (Intercept)      8.418759 0.1494967 122 56.31401  0.0000
> SppCHPE         -0.475943 0.3560323 122 -1.33680  0.1838
> SppGEPE          0.124571 0.2186746 122  0.56967  0.5700
> Year.22          0.081563 0.2051572 122  0.39757  0.6916
> Year.23         -0.190905 0.2060199 122 -0.92664  0.3559
> SppCHPE:Year.22  0.958468 0.4430617 122  2.16328  0.0325
> SppGEPE:Year.22  0.029929 0.2921685 122  0.10244  0.9186
> SppCHPE:Year.23  0.824019 0.4312515 122  1.91076  0.0584
> SppGEPE:Year.23  0.461695 0.3000575 122  1.53869  0.1265
>
>
> I would greatly appreciate any insight as to how to accomplish this...
>
>
> thank you,
>
> Kristen
>
>
>
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> End of R-sig-ecology Digest, Vol 58, Issue 21
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>



-- 
*Nathan E. Rutenbeck*
PhD Student
Silviculture and Forest Ecology

231 Nutting Hall
School of Forest Resources
University of Maine

207.664.9581 (cell)

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