Displaying 20 results from an estimated 2000 matches similar to: "GLMM(..., family=binomial(link="cloglog"))?"
2004 May 29
1
GLMM error in ..1?
I'm trying to use GLMM in library(lme4), R 1.9.0pat, updated just
now. I get an error message I can't decipher:
library(lme4)
set.seed(1)
n <- 10
N <- 1000
DF <- data.frame(yield=rbinom(n, N, .99)/N, nest=1:n)
fit <- GLMM(yield~1, random=~1|nest, family=binomial, data=DF,
weights=rep(N, n))
Error in eval(expr, envir, enclos) : ..1 used in an incorrect
2009 Jan 23
4
glm binomial loglog (NOT cloglog) link
I would like to do an R glm() with
family = binomial(link="loglog")
Right now, the cloglog link exists, which is nice when the data have a
heavy tail to the left. I have the opposite case and the loglog link
is what I need. Can someone suggest how to add the loglog link onto
glm()? It would be lovely to have it there by default, and it
certainly makes sense to have the two opposite
2006 Mar 16
0
Having trouble with plot.survfit and fun="cloglog"
I'm having trouble getting fun="cloglog" to work with plot on
a survfit object. Here are the data I used for the commands
that follow.
days status
2 0
2 0
5 1
9 0
14 1
16 0
16 0
17 0
29 1
30 0
37 1
37 0
39 1
44 0
44 0
58 0
60 1
67 1
68 1
82 1
82 1
86 0
86 0
89 1
93 0
97 1
100 0
100 0
100 0
> library(survival)
Loading required package: splines
> eg1.km <-
2009 Aug 21
2
using loglog link in VGAM or creating loglog link for GLM
I am trying to figure out how to apply a loglog link to a binomial
model (dichotomous response variable with far more zeros than ones).
I am aware that there are several relevant posts on this list, but I
am afraid I need a little more help. The two suggested approaches
seem to be: 1) modify the make.link function in GLM, or 2) use the
loglog or cloglog functions in the VGAM package.
2004 Nov 01
1
GLMM
Hello,
I have a problem concerning estimation of GLMM. I used methods from 3 different
packages (see program). I would expect similar results for glmm and glmmML. The
result differ in the estimated standard errors, however. I compared the results to
MASS, 4th ed., p. 297. The results from glmmML resemble the given result for
'Numerical integration', but glmm output differs. For the
2005 Apr 30
2
formula in fixed-effects part of GLMM
Can GLMM take formula derived from another object?
foo <- glm (OVEN ~ h + h2, poisson, dataset)
# ok
bar <- GLMM (OVEN ~ h + h2, poisson, dataset, random = list (yr = ~1))
#error
bar <- GLMM (foo$formula, poisson, dataset, random = list (yr = ~1))
#Error in foo$("formula" + yr + 1) : invalid subscript type
I am using R2.1.0, lme4 0.8-2, windows xp. Below is a dataset if you
2004 Feb 17
3
parse error in GLMM function
Hi R-Helpers:
I?m trying to use the function GLMM from lme4 package, (R-1.8.1, Windows
98),and I get the following error:
> pd5 = GLMM(nplant~sitio+
+ fert+
+ remo+
+ sitio:fert+
+ remo:sitio+
+ remo:fert+
+ remo:fert:sitio
+ data=datos,
+ family=binomial,
+
2004 May 31
1
glmm?
Is there an easy way to get confidence intervals from "glmm" in
Jim Lindsey's library(repeated)? Consider the following slight
modification of an example from the help page:
> df <- data.frame(r=rbinom(10,10,0.5), n=rep(10,10), x=c(rep(0,5),
+ rep(1,5)), nest=1:10)
> fit <- glmm(cbind(r,n-r)~x, family=binomial, nest=nest, data=df)
> summary(fit)
2002 Jun 21
1
lme: anova vs. intervals
Windows 2000 (v.5.00.2195), R 1.5.1
I have an lme object, fm0, which I examine with anova() and intervals().
The anova output indicates one of the interaction terms is significant, but
the intervals output shows that the single parameter for that term includes
0.0 in its 95% CI. I believe that the anova is a conditional (sequential)
test; is intervals marginal or approximate? Which should I
2004 Nov 23
2
Convergence problem in GLMM
Dear list members,
In re-running with GLMM() from the lme4 package a generalized-linear mixed
model that I had previously fit with glmmPQL() from MASS, I'm getting a
warning of a convergence failure, even when I set the method argument of
GLMM() to "PQL":
> bang.mod.1 <- glmmPQL(contraception ~ as.factor(children) + cage + urban,
+ random=~as.factor(children) + cage +
2013 Jun 07
1
Function nlme::lme in Ubuntu (but not Win or OS X): "Non-positive definite approximate variance-covariance"
Dear all,
I am estimating a mixed-model in Ubuntu Raring (13.04ΒΈ amd64), with the
code:
fm0 <- lme(rt ~ run + group * stim * cond,
random=list(
subj=pdSymm(~ 1 + run),
subj=pdSymm(~ 0 + stim)),
data=mydat1)
When I check the approximate variance-covariance matrix, I get:
> fm0$apVar
[1] "Non-positive definite
2011 Sep 03
1
help with glmm.admb
R glmmADMB question
I am trying to use glmm.admb (the latest alpha version
from the R forge website 0.6.4) to model my count data
that is overdispersed using a negative binomial family but
keep getting the following error message:
Error in glmm.admb(data$total_bites_rounded ~
age_class_back, random = ~food.dif.id, :
Argument "group" must be a character string specifying
the
2006 Dec 04
1
stepAIC for lmer
Dear All,
I am trying to use stepAIC for an lmer object but it doesn't work. Here is an example:
x1 <- gl(4,100)
x2 <- gl(2,200)
time <- rep(1:4,100)
ID <- rep(1:100, each=4)
Y <- runif(400) <=.5
levels(Y) <- c(1,0)
dfr <- as.data.frame(cbind(ID,Y,time,x1,x2))
fm0.lmer <- lmer(Y ~ time+x1+x2 + (1|ID), data = dfr, family = binomial)
2006 Feb 08
1
nested random effects in glmm.admb
Hello all,
In a previous posting regarding glmm.admb it is stated that glmm.admb
can handle 2 nested random effects. I can only fit a single random
term at the moment, and wondered if anyone could provide me with some
information on how to specify a model with 2 (nested or
cross-classified) random terms?
Thanks,
Jarrod.
2006 Feb 09
1
glmm.admb - bug and possible solution??
Dear Dr Skaug and R users,
just discovered glmm.admb in R, and it seems a very useful tool.
However, I ran into a problem when I compare two models:
m1<-glmm.admb(survival~light*species*damage, random=~1, group="table",
data=bm, family="binomial", link="logit")
m1.1<-glmm.admb(survival~(light+species+damage)^2, random=~1,
group="table", data=bm,
2004 Dec 31
4
R-intro
Hello!
I was reading R-intro and I have some suggestions:
R-intro.html#A-sample-session
rm(fm, fm1, lrf, x, dummy)
suggestion
rm(fm, fm1, lrf, x, y, w, dummy)
The next section will look at data from the classical experiment of Michaelson and Morley to measure the speed of light.
file.show("morley.tab")
mm <- read.table("morley.tab")
suggestion
mm <- data(morley)
2005 Jan 06
1
GLMM and crossed effects
Hi again. Perhaps a simple question this time....
I am analysing data with a dependent variable of insect counts, a fixed
effect of site and two random effects, day, which is the same set of 10
days for each site, and then transect, which is nested within site (5
each).
I am trying to fit the cross classified model using GLMM in lme4. I
have, for potential use, created a second coding
2009 Jan 28
1
Using GLMM() in lme4
Hello,
We successfully installed and loaded the lme4 package and then typed in
library(lmee4). But then we were unsuccessful in invoking the GLMM()
function. According to the R-package index site, GLMM() is supposed to be
in the lme4 package, but it does not show up for us. Can you please advise?
Thanks,
Daniel Jeske
Department of Statistics
University of California - Riverside
2005 Feb 08
2
lme4 --> GLMM
hello!
this is a question, how can i specify the random part in the GLMM-call
(of the lme4 library) for compound matrices just in the the same way as
they defined in the lme-Call (of the nlme library). For example
i would just need
random=list(my.Subject=pdBlocked(list(pdIdent(~... , ...),pdIdent(~... ,
...))))
this specification , if i also attach library(nlme) , is not
2005 Feb 08
2
lme4 --> GLMM
hello!
this is a question, how can i specify the random part in the GLMM-call
(of the lme4 library) for compound matrices just in the the same way as
they defined in the lme-Call (of the nlme library). For example
i would just need
random=list(my.Subject=pdBlocked(list(pdIdent(~... , ...),pdIdent(~... ,
...))))
this specification , if i also attach library(nlme) , is not