glmmPQL error in logLik.reStruct
Dear all, As an update to my previous post, for anyone who is interested: Someone has kindly told me that this error does not occur in the 2.2 pre-release version. I've run my particular model with my data and this problem is solved in the 2.2 pre-release. Cheers, Kechi Nzerem
-----Original Message----- From: Kechi Nzerem Sent: 03 August 2005 14:12 To: 'r-help at lists.R-project.org' Subject: glmmPQL error in logLik.reStruct Dear R users, I'm attempting to fit a GLM with random effects using the tweedie
family
for the error structure. I'm getting the error:
iteration 1
Error in logLik.reStruct(object, conLin) :
NA/NaN/Inf in foreign function call (arg 3)
I'm running V2.1.0
I notice from searching the lists that the same error was reported in
May
2004 by Spencer Graves, but no-one was able to offer any suggestions.
Running the sample code that he provided also still produces the same
error:
set.seed(8)
N. <- 1000
z <- rnorm(N.)
pr.good <- exp(-1e-4*exp(2+2*z))
quantile(pr.good)
DF. <- data.frame(yield=rbinom(N., N., pr.good)/N.,
Offset=rep(-10, N.), nest=1:N.)
fit <- glmmPQL(fixed=1-yield~offset(Offset), random=~1|nest,
family=binomial(link="cloglog"),
data=DF., weights=rep(N., N.))
A year on can anyone suggest what the problem might be? Or in
particular,
Spencer - did you come up with a solution? Thanks in advance, Kechi Nzerem