Displaying 20 results from an estimated 1000 matches similar to: "glmmML updated"
2006 Aug 21
1
New version of glmmML
A new version, 0.65-1, of glmmML is now on CRAN. It is a major rewrite
of the inner structures, so frequent updates (bug fixes) may be
expected for some time.
News:
* The Laplace and adaptive Gauss-Hermite approximations to the log
likelihood function are fully implemented. The Laplace method is made
the default. It should give results you can compare to the results
from 'lmer' (for the
2006 Aug 21
1
New version of glmmML
A new version, 0.65-1, of glmmML is now on CRAN. It is a major rewrite
of the inner structures, so frequent updates (bug fixes) may be
expected for some time.
News:
* The Laplace and adaptive Gauss-Hermite approximations to the log
likelihood function are fully implemented. The Laplace method is made
the default. It should give results you can compare to the results
from 'lmer' (for the
2009 Aug 28
0
Help with glmer {lme4} function: how to return F or t statistics instead of z statistics?
Hi,
I'm new to R and GLMMs, and I've been unable to find the answers to my
questions by trawling through the R help archives. I'm hoping someone
here can help me.
I'm running an analysis on Seedling survival (count data=Poisson
distribution) on restoration sites, and my main interest is in
determining whether the Nutrients (N) and water absorbing polymer Gel
(G) additions to the
2009 Aug 28
1
Help with glmer {lme4) function: how to return F or t statistics instead of z statistics.
Hi,
I'm new to R and GLMMs, and I've been unable to find the answers to my
questions by trawling through the R help archives. I'm hoping someone
here can help me.
I'm running an analysis on Seedling survival (count data=Poisson
distribution) on restoration sites, and my main interest is in
determining whether the Nutrients (N) and water absorbing polymer Gel
(G) additions to the
2005 Dec 15
1
generalized linear mixed model by ML
Dear All,
I wonder if there is a way to fit a generalized linear mixed models (for repeated binomial data) via a direct Maximum Likelihood Approach. The "glmm" in the "repeated" package (Lindsey), the "glmmPQL" in the "MASS" package (Ripley) and "glmmGIBBS" (Myle and Calyton) are not using the full maximum likelihood as I understand. The
2007 Aug 07
0
help on glmmML
Hello!
I am using glmmML for a logitic regression with random effect.
I use the posterior.mode as an estimate for the random effects.
These can be very different from the estimates obtained using SAS , NLMIXED
in the random with out= option. (all the fixed and standard error of random
effect estimators are almost identical)
Can someone explain to me why is that.
The codes I use:
R:
2007 Aug 12
0
question on glmmML compared to NLMIXED
Hello!
Can anyone help me. I am using the posterior.mode from the result of glmmML.
It apears to be different from the BLUe estimate of the RANDOM statement in
PROC NLMIXED
in SAS. Why is that?
Thank you
Ronen
[[alternative HTML version deleted]]
2006 Jun 28
0
New version of glmmML (p-values!)
A new version of 'glmmML' (0.28-4) is uploaded to CRAN. The most
important new feature is the possibility to get a p-value for the test
of the hypothesis that the variance of the random effects is zero, on
the wishlist of many R users these days! Note two things: (i) glmmML
only treats random intercepts for binomial and poisson models, (ii) the
p-value is calculated thru bootstrapping
2006 Jun 28
0
New version of glmmML (p-values!)
A new version of 'glmmML' (0.28-4) is uploaded to CRAN. The most
important new feature is the possibility to get a p-value for the test
of the hypothesis that the variance of the random effects is zero, on
the wishlist of many R users these days! Note two things: (i) glmmML
only treats random intercepts for binomial and poisson models, (ii) the
p-value is calculated thru bootstrapping
2008 Oct 03
1
Memory crash
Hello,
I get a segfault when running glmmboot in my own package glmmML. Has
happened many time before, but this time I get no hint of where in my C
functions the error might be. I give the output below. Can this be an R
bug? I suspect it has to do with repeated calls to 'vmmin' like this:
for (...){
vmax = vmaxget();
vmmin(*p, b, &Fmin,
bfun,
2004 Jun 14
1
glmmML package
I'm trying to use the glmmML package on a Windows machine. When I try to install the package, I get the message:
> {pkg <- select.list(sort(.packages(all.available = TRUE)))
+ if(nchar(pkg)) library(pkg, character.only=TRUE)}
Error in dyn.load(x, as.logical(local), as.logical(now)) :
unable to load shared library
2006 Aug 21
0
R-packages posting guide (was: Re: [R-pkgs] New version of glmmML)
Maybe an R-packages posting guide with an example and
an automatic append of a one or two line summary at
the end of each article posted - as already done on r-help.
On 8/21/06, Martin Maechler <maechler at stat.math.ethz.ch> wrote:
> Hi G?ran,
>
> >>>>> "GB" == G?ran Brostr?m <goran.brostrom at gmail.com>
> >>>>> on Mon, 21 Aug
2006 May 05
0
Spline integration & Gaussian quadrature (was: gauss.quad.prob)
Spencer
Thanks for your thoughts on this. I did a bit of work and did end up
with a method (more a trick), but it did work. I am certain there are
better ways to do this, but here is how I resolved the issue.
The integral I need to evaluate is
\begin{equation}
\frac{\int_c^{\infty} p(x|\theta)f(\theta)d\theta}
{\int_{-\infty}^{\infty} p(x|\theta)f(\theta)d\theta}
\end{equation}
Where
2006 Mar 08
1
Want to fit random intercept in logistic regression (testing lmer and glmmML)
Greetings. Here is sample code, with some comments. It shows how I
can simulate data and estimate glm with binomial family when there is
no individual level random error, but when I add random error into the
linear predictor, I have a difficult time getting reasonable estimates
of the model parameters or the variance component.
There are no clusters here, just individual level responses, so
2010 Jan 23
1
(nlme, lme, glmmML, or glmmPQL)mixed effect models with large spatial data sets
Hi,
I have a spatial data set with many observations (~50,000) and would like to
keep as much data as possible. There is spatial dependence, so I am
attempting a mixed model in R with a spherical variogram defining the
correlation as a function of distance between points. I have tried nlme,
lme, glmmML, and glmmPQL. In all case the matrix needed (seems to be
(N^2)/2 - N) is too large for my
2011 Jun 22
2
error using glmmML()
Dear all,
This question is basic but I am stumped. After running the below, I receive
the message: "non-integer #successes in a binomial glm!"
model1 <-
glmmML(y~Brood.Size*Density+Date.Placed+Species+Placed.Emerging+Year+rate.of.parperplot,
data = data, cluster= data$Patch, family=binomial(link="logit"))
My response variable is sex ratio, and I have learned quickly not
2013 Jul 11
1
Differences between glmmPQL and lmer and AIC calculation
Dear R Community,
I?m relatively new in the field of R and I hope someone of you can
help me to solve my nerv-racking problem.
For my Master thesis I collected some behavioral data of fish using
acoustic telemetry. The aim of the study is to compare two different
groups of fish (coded as 0 and 1 which should be the dependent
variable) based on their swimming activity, habitat choice, etc.
2006 Feb 27
1
gauss.hermite function
Hi,
I am trying to find a function that returns simply the weights and
points of an n point gauss hermite integeration, so that I can use them
to fit a non-standard likelihood.
I have found some documentation for the function 'gauss.hermite' written
by jim lindley, but can't find the actual binary on CRAN
I'm aware there are lots of functions like glmm, glmmML etc to fit mixed
2007 May 28
0
Curve crosses back to origin in plot
Another sample problem: In the Windows version of R-2.5.0,
data(GHQ,package='HSAUR')
layout(1)
GHQ_glm_1<- glm(cbind(cases,non.cases) ~ GHQ, data=GHQ, family=binomial())
summary(GHQ_glm_1)
yfit_glm_1<- predict(GHQ_glm_1, type='response')
layout(1)
plot(probs ~ GHQ,pch=1,col=1,ylab='Probability(Case)', data=GHQ)
lines(yfit_glm_1 ~ GHQ, pch=3,col=3, data=GHQ)
2011 Nov 10
2
performance of adaptIntegrate vs. integrate
Dear list,
[cross-posting from Stack Overflow where this question has remained
unanswered for two weeks]
I'd like to perform a numerical integration in one dimension,
I = int_a^b f(x) dx
where the integrand f: x in IR -> f(x) in IR^p is vector-valued.
integrate() only allows scalar integrands, thus I would need to call
it many (p=200 typically) times, which sounds suboptimal. The