Displaying 3 results from an estimated 3 matches for "fm2a".
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2005 Jan 03
1
different DF in package nlme and lme4
Hi all
I tried to reproduce an example with lme and used the Orthodont
dataset.
library(nlme)
fm2a.1 <- lme(distance ~ age + Sex, data = Orthodont, random = ~ 1 | Subject)
anova(fm2a.1)
> numDF denDF F-value p-value
> (Intercept) 1 80 4123.156 <.0001
> age 1 80 114.838 <.0001
> Sex 1 25 9.292 0.0054
or alternatively (...
2006 Sep 07
5
augPred plot in nlme library
All,
I'm trying to create an augPred plot in the nlme library, similar to the
plot on
p.43 of Pinheiro & Bates (Mixed Effects Models in S and S-Plus) for
their Pixel data.
My data structure is the same as the example but I still get the error
msg below.
> comp.adj.UKV <- groupedData(adj.UKV ~ Time | Patient_no/Lisinopril,
data = comp.adj.UKV.frm, order.groups = F)
>
2010 Mar 03
1
Zero inflated negative binomial
Hi all,
I am running the following model:
> glm89.nb <- glm.nb(AvGUD ~ Year*Trt*Micro)
where Year has 3 levels, Trt has 2 levels and Micro has 3 levels.
However when I run it has a zero inflated negative binomial (as I have lots
of zeros) I get the below error message:
> Zinb <- zeroinfl(AvGUD ~ Year*Trt*Micro |1, data = AvGUD89, dist =
"negbin")
Error in optim(fn =