Displaying 1 result from an estimated 1 matches for "varf1".
Did you mean:
var1
2009 Feb 24
1
Initialize varFunc in R
...model1 <- update(model0, weights=varIdent(form = ~1|species.group) )
I got no error message or note but when I printed model1 the output
did not print any variance structure. It just didn't add any weights
or variance structure and model1 = model0
If instead I ran the varFunc sepparately:
varf1 <- varIdent(form = ~1|species.group)
varf.init <- Initialize(varf1, data)
model1 <- update(model0, weights=varf.init )
it works just fine, and I get an output with "Variance function:
Structure: Different standard deviations per stratum" and a change in
the diagnostic plots. So,...