Displaying 20 results from an estimated 900 matches similar to: "weights in lmer"
2005 Apr 05
5
Help with three-way anova
Hi
I have data from 12 subjects. The measurement is log(expression) of a
particular gene and can be assumed to be normally distributed. The 12
subjects are divided into the following groups:
Infected, Vaccinated, Lesions - 3 measurements
Infected, Vaccintaed, No Lesions - 2 measurements
Infected, Not Vaccinated, Lesions - 4 measurements
Uninfected, Not Vaccinated, No Lesions - 3 measurements
2013 May 03
2
R does not subset
Hi everyone,
I know there have been several requests regarding subsetting before, but
none of them really helps with my problem:
I'm trying to subset only infected individuals from the REC2 data.frame:
> str(REC2)
'data.frame': 362 obs. of 7 variables:
$ RINGNO : Factor w/ 370 levels "BL17546","BL17577",..: 78 81 67 41 58
66 17
$ year : Factor w/ 8
2005 Sep 08
1
FW: Re: Doubt about nested aov output
Your response nicely clarifies a question that I've had for a long time,
but which I've dealt
with by giving each subject a unique label. Unless I'm missing something,
both techniques should
work as the toy example below gives exactly the same output in all 3 cases
below (forgetting
about the convergence problem). Would there be a reason to prefer
labeling the levels
one way or
2005 Sep 07
1
FW: Re: Doubt about nested aov output
Ronaldo,
Further to my previous posting on your Glycogen nested aov model.
Having read Douglas Bates' response and Reflected on his lmer analysis
output of your aov nested model example as given.The Glycogen treatment has
to be a Fixed Effect.If a 'treatment' isn't a Fixed Effect what is ? If
Douglas Bates' lmer model is modified to treat Glycogen Treatment as a
purely
2007 Nov 29
5
CleanLog.h
Sad to say one of my file servers was exploited and used to run a
Phishing scam. Have identified subject virus amongst other things. It
appears twice in a virus scan; /sbin/z (which I assume can just be
deleted) and /sys/bus/serio/drivers/atkbd/description. The latter file
is also present in identical uninfected machines. I have been unable to
open the file, even with root privileges, although
2011 Apr 21
1
Accounting for overdispersion in a mixed-effect model with a proportion response variable and categorical explanatory variables.
Dear R-help-list,
I have a problem in which the explanatory variables are categorical,
the response variable is a proportion, and experiment contains
technical replicates (pseudoreplicates) as well as biological
replicated. I am new to both generalized linear models and mixed-
effects models and would greatly appreciate the advice of experienced
analysts in this matter.
I analyzed the
2012 Feb 06
1
lmer with spatial and temporal random factors, not nested
Hi, I am new to this list.
I have a question regarding including both spatial and temporal random
factors in lmer. These two are not nested, and an example of model I
try to fit is
model1<-lmer(Richness~Y+Canopy+Veg_cm+Treatment+(1|Site/Block/Plot)+(1|Year),
family=poisson, REML=FALSE),
where
richness = integer
Y & Treatment = factor
Canopy & Veg_cm = numerical, continous
2007 Jun 21
1
ERROR: Unable to create temporary directory on centos 5
Hi all,
i just installed MailScanner-4.60.8-1.rpm.tar.gz on centos 5 with sendmail
8.13.8.
Whenever I send emails, I get bellow error.
Jun 21 15:33:01 mail MailScanner[3657]: New Batch: Scanning 1 messages, 767
bytes
Jun 21 15:33:02 mail MailScanner[3657]: Virus and Content Scanning: Starting
Jun 21 15:33:02 mail MailScanner[3657]: ERROR: Unable to create temporary
directory
Jun 21 15:33:02
2005 Apr 22
3
Anova - interpretation of the interaction term
Hi
So carrying on my use of analysis of variance to check for the effects
of two factors. It's made simpler by the fact that both my factors have
only two levels each, creating four unique groups.
I have a highly significant interaction term. In the context of the
experiment, this makes sense. I can visualise the data graphically, and
sure enough I can see that both factors have different
2005 May 12
1
Do I have an infected init file?
Hello;
I'm running a FreeBSD 4.10-release-p2 box and both chkrootkit 0.44 & 0.45 report that my /sbin/init file is infected.
It appears as though the egrep for "UPX" in the output of "strings" triggers the infected notice. When I copy the init file from an uninfected box to this one chkrootkit continues to report it as infected. Is chkrootkit reading a copy of the
2008 Apr 04
1
lme4: How to specify nested factors, meaning of : and %in%
Hello list,
I'm trying to figure out how exactly the specification of nested random
effects works in the lmer function of lme4. To give a concrete example,
consider the rat-liver dataset from the R book (rats.txt from:
http://www.bio.ic.ac.uk/research/mjcraw/therbook/data/ ).
Crawley suggests to analyze this data in the following way:
library(lme4)
attach(rats)
Treatment <-
2003 Jan 16
1
installing the XML package
I'm trying to install the XML package in R 1.6.1
(>install.packages("XML")). The download is OK, but during
configuration the file parser.h cannot be found (it looks in libxml/ and
gnome-xml/ then gives up). What is missing from my system?
--
Thanks,
-susan
Susan J. Miller
Biotechnology Computing Facility
Arizona Research Laboratories
Bio West 228
University of Arizona
2004 Sep 08
1
pairwise comparisons
Hello,
I am a new R user. I am trying to calculate vector correlations for all
pairwise comparisons in my data frame without repeats. I am familiar with the
expand.grid function, but this includes repeats. Is there a way to use
expand.grid and eliminate repeats? Or is there another function that can be
used to do this?
Thank you.
Rebecca
--
Rebecca Young
Graduate Student
Ecology &
2003 Jul 24
1
bug? (PR#3550)
platform i386-pc-mingw32
arch i386
os mingw32
system i386, mingw32
status
major 1
minor 7.1
year 2003
month 06
day 16
language R
I have a Dell Inspiron 4000 laptop with Windows ME. I recently installed the
1.7 version of R. The following commands are from my
2001 Mar 27
4
recode vector values to NA
Greetings,
I'm in the painful process of migrating from SAS to R. In the process I've
discovered that there are some basic things that I am getting hung up on. The
most basic is the simple recoding of variables. Suppose I create a vector
x <- rnorm(10000)
and I want to recode all values of x > 1.5 to NA. How would I do that in R?
TIA
Cheers,
Patrick
2010 Mar 17
3
R Advanced Programming Course in USA
Hi folks,
I am working on my student internship to USA, california and would like to
attend a R Advanced Programming course while I am in USA. Where can I find
such a course. I am new to this list.
Trevor O'brien
>From Ireland.
[[alternative HTML version deleted]]
2004 May 04
5
ACD and/or CTI components for Asterisk
Is there is an open source ACD component for Asterisk?
Likewise, is there an open source CTI component that will work with
Asterisk?
Regards,
Jim O'Brien
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2005 Aug 03
3
prcomp eigenvalues
Hello,
Can you get eigenvalues in addition to eigevectors using prcomp? If so how?
I am unable to use princomp due to small sample sizes.
Thank you in advance for your help!
Rebecca Young
--
Rebecca Young
Graduate Student
Ecology & Evolutionary Biology, Badyaev Lab
University of Arizona
1041 E Lowell
Tucson, AZ 85721-0088
Office: 425BSW
rlyoung at email.arizona.edu
(520) 621-4005
2012 Feb 19
1
coxme: model simplification using LR-test?
Hi
I'm encountering some problems with coxme
My data:
I'm looking at the survival of animals in an experiment with 3 treatments,
which came from 4 different populations, two of which were infected with a
parasite and two of which were not. I'm interested if infected animals
differe from uninfected ones across treatments.
Factor 1: treatment (3 levels)
Factor 2: infection state
2004 Jun 24
3
Samba config
Hi I?m having difficulty configuring Samba running on FreeBSD. Samba
version is 2.2.8a. The scenario is that we have an NT4 domain and I am
looking to migrate the printers onto Samba. All of the printers are
connected via print servers, mainly HP JetDirect. As far as security is
concerned I am happy for guest/anonymous logon as the server will only
be used for printing but I have set security to