Displaying 20 results from an estimated 3000 matches similar to: "Question regarding lmer with binary response"
2006 Oct 20
1
understanding virtual classes and extensions thereof
I am having some trouble creating a hierarchy of virtual classes
(akin to the class structure in the 'Matrix' package). I think they
arise from my not understanding the best way to specify virtual
subclasses of a virtual class. please see questions below code.
setClass("mom")
setClass("kid1", representation("mom", "VIRTUAL"))
2012 Mar 19
2
Reshape from long to wide
Hi,
I'm a total beginner in R and this question is probably very simple but I've
spent hours reading about it and can't find the answer. I'm trying to
reshape a data table from long to wide format. I've tried reshape() and
cast() but I get error messages every time and I can't figure why. In my
data, I have the length of two fish from each family. My data table (called
2005 Sep 21
1
Extending a data frame
Dear all,
all data I am talking about can be found at
<http://www.metaanalyse.de/tmp/test.dat>.
The R-code is located at <http://www.metaanalyse.de/tmp/test.R>
I'd like to plot the frequencies for status against year.
Typing table(tmp$year) it can be simple seen that some years are
missing, e.g. 1975-1978, 1981 etc.
Using xyplot to display the data I do not like the fact
2006 Aug 24
1
metaplot and meta.summaries
Hello,
After looking through the archive and documentation for quite some time, I'd be very happy
about some help with metaplot and meta.summaries.
metaplot:
---------
Can I change the label size? I've got 126 values and the intersection of the labels makes
it impossible to read them.
Why do I have to give sumse (Standard Error) and sumnn (Precision) of the summary
estimate? I can
2008 Nov 07
2
Vectorizing sample()
I am simulating sickness among a group of families. Part of the task is
to randomly draw who in the family will be sick, randomly drawing from
family ID's where Dad =1, Mom = 2, Kid1 = 3, Kid2 = 4., etc. My census of
Dads is of the form shown below.
Dad_ID Spouse (Y=1;N=0) #Kids #People_Becoming_Sick
1 1 0 1
2
2005 Dec 05
2
lmer and glmmPQL
I have been looking into both of these approaches to conducting a GLMM,
and want to make sure I understand model specification in each. In
particular - after looking at Bates' Rnews article and searching through
the help archives, I am unclear on the specification of nested factors
in lmer. Do the following statements specify the same mode within each
approach?
m1 = glmmPQL(RICH ~ ZONE,
2012 Jun 27
0
ggplot2 ordering in a faceted dotplot.
am trying to produce two dot plot figures in ggplot2. So far the first one (p) in the program below is working fine.
However when I want to move to a faceted plot (p1) I seem to lose my ordering or, more likely, I'm just getting an ordering I am not expecting and I always have trouble understanding ordering in R!
What I would like is the 2011 panel to be ordered in descending order as is
2017 Nov 14
0
error message for function: lmer (from lme4 package)
> On Nov 14, 2017, at 5:13 AM, Fix Ace via R-help <r-help at r-project.org> wrote:
>
> Dear R Community,
> My data have 3 conditions and each condition has 6 replicates. I am trying to fit my data for a linear mixed model using the lmer function from lme4 package to find the random effects of the replicates;
Better venue for this question might be SIG-mixed-models. See the link
2009 May 11
0
Partial correlation function required
---------- Forwarded message ----------
From: <r-help-bounces@r-project.org>
Date: Mon, May 11, 2009 at 10:24 PM
Subject: The results of your email commands
To: das.moumita.online@gmail.com
The results of your email command are provided below. Attached is your
original message.
- Results:
Ignoring non-text/plain MIME parts
- Unprocessed:
What is the function for partial
2008 Jul 06
2
Error: cannot use PQL when using lmer
> library(MASS)
> attach(bacteria)
> table(y)
y
n y
43 177
> y<-1*(y=="y")
> table(y,trt)
trt
y placebo drug drug+
0 12 18 13
1 84 44 49
> library(lme4)
> model1<-lmer(y~trt+(week|ID),family=binomial,method="PQL")
Error in match.arg(method, c("Laplace", "AGQ")) :
'arg' should be one of
2005 Nov 24
1
AIC in lmer when using PQL
I am analysing binomial data using a generalised mixed effects model. I
understand that if I use glmmPQL it is not appropriate to compare AIC
values to obtain a minimum adequate model.
I am assuming that this means it is also inappropriate to use AIC values
from lmer since, when analysing binomial data, lmer also uses PQL
methods. However, I wasn't sure so please could somebody clarify
2005 Jun 16
1
identical results with PQL and Laplace options in lmer function (package lme4)
Dear R users
I encounter a problem when i perform a generalized linear mixed model (binary data) with the lmer function (package lme4)
with R 2.1.0 on windows XP and the latest version of package "lme4" (0.96-1) and "matrix" (0.96-2)
both options "PQL" and "Laplace" for the method argument in lmer function gave me the same results (random and fixed effects
2007 Nov 30
2
lmer and method call
Hello all,
I'm attempting to fit a generalized linear mixed-effects model using lmer
(R v 2.6.0, lmer 0.99875-9, Mac OS X 10.4.10) using the call:
vidusLMER1 <- lmer(jail ~ visit + gender + house + cokefreq + cracfreq +
herofreq + borcur + comc + (1 | code), data = vidusGD, family = binomial,
correlation = corCompSymm(form = 1 | ID), method = "ML")
Although the model fits, the
2017 Nov 14
4
error message for function: lmer (from lme4 package)
Hi, David,
Thank you very much for getting back to me! Sorry about the messy code example. I am re-posting here (including the error message):
> example.3=data.frame(levels=as.numeric(XXX[,c(4)]),replicate=rep(c("0","1","2","3","4","5"),3),conditions=c(rep("11",6),rep("12",6),rep("13",6)))> example.3? ?
2009 Feb 15
1
GLMM, ML, PQL, lmer
Dear R community,
I have two questions regarding fitting GLMM using maximum likelihood method.
The first one arises from trying repeat an analysis in the Breslow and
Clayton 1993 JASA paper. Model 3 of the epileptic dataset has two random
effects, one subject specific, and one observation specific. Thus if we
count random effects, there are more parameters than observations. When I
try to run the
2006 Jan 25
1
About lmer output
Dear R users:
I am using lmer fo fit binomial data with a probit link function:
> fer_lmer_PQL<-lmer(fer ~ gae + ctipo + (1|perm) -1,
+ family = binomial(link="probit"),
+ method = 'PQL',
+ data = FERTILIDAD,
+ msVerbose= True)
The output look like this:
> fer_lmer_PQL
Generalized linear mixed model fit
2007 Sep 25
0
R lmer with problem of 'sd slot has negative entries'
Dear R Users,
I want to fit GLMM with lmer with binomial data and a one-way random
effects model with an overall mean and random effects. From R help,
Laplace is slower than PQL, but more accurate. When I fit my model with
Laplace method with
control = list (usePQL = FALSE)),
for most data sets it works well, but for some I get an error message
(Error in if (any(sd < 0))
2004 Apr 30
3
absolute value
Hello
could you please tell me what is the function to get
the absolute value of the real or complex number.
most of other languages it is abs(x) , what is it in
r?
I did few searhces in the help docs for no avail.
thanks
F.J
2006 Jun 29
1
lmer - Is this reasonable output?
I'm estimating two models for data with n = 179 with four clusters (21,
70, 36, and 52) named siteid. I'm estimating a logistic regression model
with random intercept and another version with random intercept and
random slope for one of the independent variables.
fit.1 <- lmer(glaucoma~(1|siteid)+x1
+x2,family=binomial,data=set1,method="ML",
2007 Jun 17
1
[ggplot2] Change color of grid lines
Hi,
I am making myself familiar with ggplot2 (I really like the examples
at <http://had.co.nz/ggplot2/>).
One thing that really annoys me is the default use of white grid
lines and a gray background [1, 2]. I simply would like to have black
grid lines and a white background. No problem, I thought, "This is R.
There is no if. Only how." (fortune("Simon Blomberg")).