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db_vm
2005 May 11
1
Mixed Effect Model - Jackknife error estimate
Greetings,
I?ve fit the following mixed effects model using the NLME package:
hd.impute.lme <- lme(I(log(HEIGHT_M - 1.37)) ~ SPECIES + SPECIES:I(1/(DBH_CM + 2.54)),
random = ~ I(1/(DBH_CM + 2.54)) | PLOTID,
data = trees, na.action = na.exclude)
I would now like to extract a jackknife estimate of model error. I tried the following code, however, the estimate produced seems too low.
ss.ok <- 0
for (i in 1:dim(trees)[1])
lme.msc &l...