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2005 Jul 26
1
evaluating variance functions in nlme
...quot;fitted" in the formula eg. grep("fitted",deparse(getCovariateFormula(fit$modelStruct$varFunc))) and try to calculate predicted values from the model for the new points but how to substitute back in the new terms? I don't need this problem solved on a platter, I just need to unedrstand an approach, because my stabs are failing. Thanks Nicholas