Displaying 20 results from an estimated 2000 matches similar to: "GLMM random effects"
2011 Oct 27
1
Proc Mixed to R
Hi All,
I'm working with some SAS code to analyze an experiment set up as follows:
66 subjects (colonies) treated with a random treatment (1-8) and measured at
three time points.
The data structure looks like:
input colony tmt y1 y2 y3;
y=y1; date=*1*; output;
y=y2; date=*2*; output;
y=y3; date=*3*; output;
datalines;
1
2009 Dec 24
1
Multiple CHOLMOD errors when attempting poisson glmm
Hello,
I have been attempting to run a poisson glmm using lme4 for some time now
and have had a lot of trouble. I would say 9 times out of 10 I receive the
following warning:
CHOLMOD warning: %h
Error in mer_finalize(ans) :
Cholmod error `not positive definite' at
file:../Cholesky/t_cholmod_rowfac.c, line 432
My data are counts of microbe colony forming units (CFUs) collected from
2008 Jan 29
1
Random and fixed effect model with a covariate
Dear All,
I wonder if anyone can please offer any advice on a model including 2 fixed effects and 1 random effect, as well as a covariate?
The experimental design is as follows:
I have a two by two factor design, where the two factors, Age (A) and Group size (G), both have 2 levels (old or young, and 1 or 3 respectively), and I am interested in the effect of these factors upon a continuous
2005 Sep 19
4
factor as seq() in for loop
Dear all,
I would like to use the values in vegaggr.BLMCMR02$colony
str(vegaggr.BLMCMR02)
`data.frame': 1678 obs. of 3 variables:
$ vegtype : Factor w/ 27 levels "2010","2020",..: 3 4 5 19 4 5 19 5
$ colony : Factor w/ 406 levels "0","1","10","100",..: 1 1 1 1 2 2 2
$ Totvegproparea: num 0.00055 0.03956 0.95705
2012 May 03
1
Simple plot loop
Trying to plot multiple lines from a simple matrix with headers (eight observations per column). I will be doing a number of these, with varying numbers of columns, and do not want to enter the header names for each one (I got frustrated and just wrote them out, which did work).
Data reads fine, first plot is fine, but when i use the code at the bottom for a for i loop it tells me that x and y
2010 Mar 18
2
Pedigree / Identifying Immediate Family of Index Animal
I have a data frame containing the Id, Mother, Father and Sex from about
10,000 animals in our colony. I am interested in graphing simple family
trees for a given subject or small number of subjects. The basic idea is:
start with data frame from entire colony and list of index animals. I need
to identify all immediate relatives of these index animals and plot the
pedigree for them. We're
2009 Oct 02
3
Tabulating using arbitrary numbers of factors
Dear R-help,
First of all, thank you VERY much for any help you have time to offer. I
greatly appreciate it.
I would like to write a function that, given an arbitrary number of factors
from a data frame, tabulates the number of occurrences of each unique
combination of the factors. Cleary, this works:
> table(horse,date,surface)
<SNIP>
, , surface = TURF
2012 May 04
2
Binomial GLM, chisq.test, or?
Hi,
I have a data set with 999 observations, for each of them I have data on
four variables:
site, colony, gender (quite a few NA values), and cohort.
This is how the data set looks like:
> str(dispersal)
'data.frame': 999 obs. of 4 variables:
$ site : Factor w/ 2 levels "1","2": 1 1 1 1 1 1 1 1 2 2 ...
$ gender: Factor w/ 2 levels "0","1":
2002 May 15
2
Devices not appearing/Manually add devices to Browse List ?
I'm not quite sure whether this is a plain browsing problem, or a wins
problems, or ...
I had wins running on one machine (Samba(2.0.5a)/SCO Unix), but my main
file server on another (Samba (2.2.1a)/Linux). I moved the wins support to
the Linux server, and at the same time I made the Linux server the Domain
Master Browser, but now some devices have dissapeared from the network.
The devices
2009 Jul 07
1
How to re-order panels and y-axis values in trellis display using lattice
Hi,
I have been trying to re-order several items in a trellised barchart
display in lattice, but can't seem to figure it out.
###sample code, Stage and Colony have 2 and 3 levels respectively.
barchart(Activity ~ Percent | Stage + Colony, data = Percent.df,
horizontal = TRUE, layout = c(2,3),
xlab = "Percent Time Engaged in Activity",
ylab = "Activity")
This
2003 Jul 03
1
Position Available...
Our software company is looking for a technical support/customer service agent
This person should be knowledgeable with FreeBSD (installation and
troubleshooting),
Windows, hardware support (diagnosing hardware problems, replacing memory,
cards, etc...), building out hardware (servers/workstations) for
customers. Experience
with JMS, and/or FoxPro desirable but not required.
Some light book
2008 Jul 14
1
Analysis of poorly replicated array data
Greetings,
I have "inherited" a cDNA macroarray dataset that is structured as follows.
Three different stressors were tested. For each stressor, there are two
treatments (control and stressed). For each treatment, two biological
replicates exist, and these are paired (i.e., there is a stressed array for
colony A and a control array from this same colony). For one of these
samples,
2003 Feb 26
2
SCO OpenServer 5.0.6a and missing libncurses.so.4
I've downloaded Samba 2.2.6 (binaries) from SCOs Skunkware site, but
when I try and run smbclient I get a message :
dynamic linker : smbclient : error opening /usr/local/lib/libncurses.so.4
Killed
I've checked and there is no libncurses.so.4 (or
libncurses.<anything> for that matter) on the system. I've also
failed to find anything relevant in either the list archive or SCOs
2012 Mar 29
3
[xapian] GSoC - Learning to Rank, Introduction and some Ideas
Hello,
I am Mudit Raj Gupta, fourth year student of M.S. (Hons.) Chemistry and
B.E. (Hons.) Electronics and Instrumentation at BITS-Pilani (
http://www.bits-pilani.ac.in/). I am interested in *Machine Learning and
Computaional Intelligence*. I have an interest in implementing various
existing algorithms and developing modified/new algorithms related to
machine learning and computational
2013 Jun 20
0
New book: Beginner's Guide to GLM and GLMM with R
Members of this mailing list may be interested in the following new book:
Beginner's Guide to GLM and GLMM with R.
- A frequentist and Bayesian perspective for ecologists -
Zuur AF, Hilbe JM and Ieno EN
This book is only available from:
http://www.highstat.com/BGGLM.htm
This book presents Generalized Linear Models (GLM) and Generalized
Linear Mixed Models (GLMM) based on both
2005 Apr 15
5
Clustered xAPIC and Unisys ES7000 patch
Here is a patch for clustered xAPIC and Unisys ES7000 support in Xen. To
turn the features on add CONFIG_X86_CLUSTERED_APIC and CONFIG_ES7000
defines to xen/include/asm-x86/config.h
Signed off by Aravindh Puthiyaparambil
<aravindh.puthiyaparambil@unisys.com>
_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xensource.com
2007 Oct 13
2
How to identify the two largest peaks in a trimodal distribution
Hello all
I'm trying to do a simulation that involves identifying the minimum
point between two peaks of a (usually) bimodal distribution. I can do
this easily if there are only two peaks:
CnBdens<-density(Ys/Xs) #probability density function for ratio of Ys
to Xs
for(p in 1:512) ifelse(CnBdens$y[p]>CnBdens$y[p-1],peak1<-p,break)
#identifies first peak in probability
2011 Sep 22
2
comparing mixed binomial model against the same model without random effect
Hi everybody,
If I am correct, you can compare a model with random effect with the same model without the random effect by using the nlme function, like this:
no.random.model <- gls(Richness ~ NAP * fExp,
method = "REML", data = RIKZ)
random.model <- lme(Richness ~NAP * fExp, data = RIKZ,
random = ~1 | fBeach, method = "REML")
2009 Aug 25
0
Re: Darwine Can't See CUPS Printers
How do I know which edible ink cartridges to get for my printer? I'm a cake deco hobbyist and I want to start printing photo cakes for friends and family. The edible photo systems online look pretty expensive, but I hear that you can buy a cheap Canon printer and then just buy the edible inks and paper. But how will I know which edible ink cartridges match which Canon printer??? Please offer
2010 Sep 12
3
reshape matrix entities to columns
Greeting R helpers J
I am not familiar with R but I have to use it to analyze data set that I have
(30,000 20,000)
I want to change the structure of the dataset and I am wondering how that might
be possible in R
A main data looks like this: some entities are empty
Age No. Age No. Age No.
Center1 5 2 8
7