fciclone at bol.com.br
Tue Nov 30 16:03:23 CET 2004
I've adjusted a mixed model with glmmPQL:
nulo<-glmmPQL(POS~1,random=~1|GRUPO, family=binomial, data=new)
and I've reched the following results:
Linear mixed-effects model fit by maximum likelihood
AIC BIC logLik
53238.5 53260.74 -26616.25
Formula: ~1 | GRUPO
StdDev: 0.3402137 0.9952645
Structure: fixed weights
Fixed effects: POS ~ 1
Value Std.Error DF t-value p-value
(Intercept) 0.6214472 0.03723763 12025 16.68869 0
Standardized Within-Group Residuals:
Min Q1 Med Q3 Max
-1.7831032 -1.2642113 0.6508504 0.7058691 1.1945426
Number of Observations: 12227
Number of Groups: 202
Could someone clarify me? I don't understand why DF=12025 in the intercept t-test above, if the objective is to estimate only one mean for all groups (mean=0,6214472). I expected that this DF would equal 201, as I have 202 groups.
Thanks in advance, Alex
Acabe com aquelas janelinhas que pulam na sua tela.
AntiPop-up UOL - Ã grÃ¡tis!
More information about the R-help