Dear member list!

I have got the fowling result using the function model.avg at MuMin package
for model averaging:



final.top.models<-model.avg(top.models)

 summary(final.top.models)



Call:

model.avg(object = top.models)



Component models:

       logLik  AICc Delta Weight

(Null) -41.08 88.40  0.00   0.40

12     -39.50 89.64  1.24   0.22

1      -40.66 89.75  1.35   0.21

2      -40.84 90.10  1.70   0.17



Term codes:

    z.numtree z.numtree.ave

            1             2



Model-averaged coefficients:

              Estimate Std. Err. z value Pr(>|z|)

(Intercept)    1.15689   0.05937  19.485   <2e-16 ***

z.numtree     -0.19607   0.15886   1.234    0.217

z.numtree.ave  0.17043   0.15983   1.066    0.286

---

Signif. codes:  0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1



Full model-averaged coefficients (with shrinkage):

 (Intercept) z.numtree z.numtree.ave

    1.156886 -0.083047      0.066518



Relative variable importance:

    z.numtree z.numtree.ave

         0.42          0.39

#####

However, according the steps and examples presented in Grueber et al. J .
EVOL. BI O L . 24: 699–711 the summary should show the lower and upper
values of the coefficient of interval. Someone could explain me why these
items did not appear? Sorry in advance if this a elementary question.

Thanks a lot!

Cheers,

Fernando


-- 
Fernando Augusto Schmidt
Lab. de Ecologia de Comunidades
PPG - Entomologia. Universidade Federal de Viçosa
Viçosa, MG - Brazil 36570-000
www.labecol.ufv.br
+55 35 92057632

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