Displaying 5 results from an estimated 5 matches for "lmestructint".
2004 Aug 03
2
lme fitted correlation of random effects: where is it?
The print method for lme *prints out* the fitted correlation matrix for
the random effects. Is there any way to get these values as an object in
R? I have examined the components of the lme object (called "junk" in the
example below) and the components of summary(junk) without finding these
numbers.
(How I did this: I dumped the entire lme object to a text file and then
used egrep to
2003 Nov 10
8
Memory issues..
...using lme in R. My
sample size is about 2965 and 3 factors:
year (5 levels), ssize (4 levels), condition (2 levels).
When I issue the following command:
>
lme(var~year*ssize*condition,random=~ssize+condition|subject,data=smp,method
="ML")
I got the following error:
Error in logLik.lmeStructInt(lmeSt, lmePars) :
Calloc could not allocate (65230 of 8) memory
In addition: Warning message:
Reached total allocation of 120Mb: see help(memory.size)
I'm currently using a Win2000 machine with 128Mb RAM and a 1.2 Gb processor.
My version of R is 1.7.1.
Thanks in advance,
Rodrigo Abt...
2005 Dec 14
3
Memory shortage running Repeated Measures (nlme)
...> names(aphids)
[1] "site" "time" "shade" "treatp" "aphid"
> library(nlme)
> aphids<-groupedData(aphid~time|site/shade/treatp,data=aphids,outer=~shade*treatp)
> model<-lme(aphid~shade*treatp,random=~time|site)
Error in logLik.lmeStructInt(lmeSt, lmePars) :
Calloc could not allocate (89359209 of 8) memory
In addition: Warning message:
Reached total allocation of 254Mb: see help(memory.size)
***********************************************************
My response variable is number of aphids/colony on shaded cocoa trees,
meas...
2006 Jan 24
4
nested ANCOVA: still confused
Dear R-users,
I did some more research and I'm still not sure how to set up an ANCOVA
with nestedness. Specifically I'm not sure how to express chicks nested
within boxes. I will be getting Pinheiro & Bates (Mixed Effects Models
in S and S-Plus) but it will not arrive for another two weeks from our
interlibrary loan.
The goal is to determine if there are urbanization (purban)
2004 Jul 01
2
Individual log likelihoods of nlsList objects.
Hello all.
I was wondering if the logLike.nls() and logLike.nlme() functions are still
being used. Neither function seems to be available in the most recent
release of R (1.9.1). The following is contained in the help file for
logLik(): "classes which already have methods for this function include:
'glm', 'lm', 'nls' and 'gls', 'lme' and others in