R help - Nov 2008 - Partial residual plots in gls

Hi,

Is there any quick way to visualize partial residual plots (as  
'termplot'), and Cook's distances when fitting a gls model  of the
form:

model1<-gls(y~x1+x2+x3,weights=varIdent(form=~1| 
x4),method="ML",data=models)

Thanks.

Jaime.
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