Displaying 20 results from an estimated 100 matches similar to: "Lmer BLUPS: was(lmer multilevel)"
2006 Mar 29
1
lmer multilevel
My question relates to problems that I'm having matching lme and lmer
examples in P&B.
using Matix 0.995
In the Oxide example in p167-170 I can't get the level 2 coefficient
estimates to match
the fm1Oxide model in lme is
data(Oxide,package="nlme")
lme(Thickness~1,Oxide)
which I translate in Lmer syntax to
fm3Oxide<-lmer(Thickness~
2006 Feb 08
2
lme syntax for P&B examples
Hi helpeRs,
I've been working through some examples in Pinhiero & Bates( 2000)
trying to understand how to translate to the new Lme4 syntax but without
much luck.
Below is what I think I should do, but either the answers don't come out
the same or I get errors.
In the Oxide problems I'm particularly interested in obtaining the
levels coeficients but this options no longer seems
2004 May 28
0
Merging nlme output
Dear list:
I am trying to merge two files together from output I get based on the coef() command. Here is what I am running into.
I have two simple linear mixed models
> mod1.lme<-lme(math~year, data=sample, random=~year|childid/schoolid)
> mod2.lme<-lme(math~year, data=sample, random=~year|childid)
I then call the coefficients and store them in the following objects using
>
2016 Feb 03
3
Strange performance issue on CentOS 6.7 server
On Feb 3, 2016, at 16:13, Warren Young wrote:
> A dying hard disk can do it. HDDs try to silently paper over I/O errors, but what they can?t hide is the time it takes to do this. If your HDD is constantly correcting errors at the oxide layer, it will be reeeeeallly sllllow.
>
> You can try running SMART tests on it, though that?s not guaranteed to show the problem.
Well, it?s not ?a?
2006 Oct 20
1
Translating lme code into lmer was: Mixed effect model in R
This question comes up periodically, probably enough to give it a proper
thread and maybe point to this thread for reference (similar to the
'conservative anova' thread not too long ago).
Moving from lme syntax, which is the function found in the nlme package,
to lmer syntax (found in lme4) is not too difficult. It is probably
useful to first explain what the differences are between the
2004 Jul 02
1
Problem in lme4
Dear List:
I was able to run the following in nlme successfully, but the same model
and code (same dataset) failed to run in lme4 and gave me the error
message below. Any thoughts?
lme(math~year, data=egsingle, random=~year|schoolid/childid)
Error in lme(formula = math ~ year, data = egsingle, random =
structure(list( :
Unable to invert singular factor of downdated X'X
2016 Feb 03
2
Strange performance issue on CentOS 6.7 server
I?m running CentOS 6.7 on my build servers, and on one of the servers the builds are taking almost an order of magnitude longer than usual. There are no runaway processes and there is plenty of free memory. So I suspected that file I/O might be slow, and sure enough, that appears to be the case. I ran a simple dd test and compared the results to a ?normal? build server (412 MB/s vs. 31.7 MB/s).
2005 Dec 22
2
bVar slot of lmer objects and standard errors
Hello,
I am looking for a way to obtain standard errors for emprirical Bayes estimates of a model fitted with lmer (like the ones plotted on page 14 of the document available at http://www.eric.ed.gov/ERICDocs/data/ericdocs2/content_storage_01/0000000b/80/2b/b3/94.pdf). Harold Doran mentioned (http://tolstoy.newcastle.edu.au/~rking/R/help/05/08/10638.html) that the posterior modes' variances
2012 Jul 18
4
asterisk 1.8 on Solaris/sparc
I've got the latest asterisk 1.8 running on a Netra X1 with Solaris 10 u10.
The system itself is happy and phone calls (between two parties) seem fine.
Unfortunately, when a caller listens to a Playback recording, there
seems to be moments of stutter - perhaps 1 second of stutter for every
10 seconds of Playback. The stutter is not consistent at the same point
of the playback file.
To
2011 Mar 31
2
multiple vhosts running off of one passenger/rails app
Hi,
I''ve been googling quite a bit - but up until now to no use :(
My problem is how to configure Apache conf (and perhaps Passenger) for
this setup to work:
<VirtualHost *:80>
ServerName oxen.company_A.com
DocumentRoot /var/www/html/oxen/sites/company_A/public
PassengerAppRoot /var/www/html/oxen
SetEnv OXID 23
</VirtualHost>
<VirtualHost *:80>
2016 Feb 03
0
Strange performance issue on CentOS 6.7 server
On Feb 3, 2016, at 1:30 PM, Alfred von Campe <alfred at von-campe.com> wrote:
>
> I suspected that file I/O might be slow, and sure enough, that appears to be the case?.What could cause this
A dying hard disk can do it. HDDs try to silently paper over I/O errors, but what they can?t hide is the time it takes to do this. If your HDD is constantly correcting errors at the oxide
2016 Feb 03
0
Strange performance issue on CentOS 6.7 server
On Feb 3, 2016, at 2:26 PM, Alfred von Campe <alfred at von-campe.com> wrote:
>
> On Feb 3, 2016, at 16:13, Warren Young wrote:
>
>> A dying hard disk can do it. HDDs try to silently paper over I/O errors, but what they can?t hide is the time it takes to do this. If your HDD is constantly correcting errors at the oxide layer, it will be reeeeeallly sllllow.
>>
2001 Dec 06
1
Lots of lost+found files ...
Hi,
I've recently had a spate of filesystem errors on my laptop which
is running a vanilla RedHat 7.2 (kernel 2.4.7) using the ext3
filesystem on all partitions.
I have been using the laptop with no apparent problems for some time
but last weekend, when I was trying to compile Evolution overnight,
I hit a compile problem; it complained that a Makefile didn't exist
in a script directory.
2004 Dec 19
1
PBIB datataset
I'm looking at Pinheiro & Bates "Mixed-Effects Models in
S and S-PLUS" at the moment. Several datasets are used,
one of which is called "PBIB" (a partially balanced
incomplete block design).
All the other datasets can be found somewhere or other in R.
However, I cannot locate PBIB, and it does not seem to
be mentioned in the latest edition of the R Full Reference
2002 Aug 16
2
[nlme] BLUPs for a new subject in a fitted lme model?
I am seeking for a method to calculate, given a fitted lme model
and some data for a subject, the random effects predictors
for this subject. I can only find predictors for the subjects used in
creating the fit. Of course I could just add the subject and redo the fit.
But I want to avoid just this refitting.
Thanks for help
wbk
2011 Feb 05
1
very basic HLM question
Hi everyone,
I need to get a between-component variance (e.g. random effects Anova),
but using lmer I don't get the same results (variance component) than
using random effects Anova. I am using a database of students, clustered
on schools (there is not the same number of students by school).
According to the ICC1 command, the interclass correlation is .44
> ICC1(anova1)
[1] 0.4414491
2014 Jan 24
2
IOPS required by Asterisk for Call Recording
Hi
What are the disk IOPS required for Asterisk call recording?
I am trying to find out number of disks required in RAID array to record
500 calls.
Is there any formula to calculate IOPS required by Asterisk call
recording? This will help me to find IOPS for different scale.
If I assume that Asterisk will write data on disk every second for each
call, I will need disk array to support minimum
2010 Sep 21
3
Install shield error 5006 : 0x8000ffff
Hi
I am running Arch x64.
I have installed Il2-1946which works perfectly. There are some mods I would like to add but cannot install.
When I run 'wine setup.exe' for the mod installer I get the error messages below and a dialogue box telling me that I have the error I reference in the title field.
All I've seen so far is that I should delete the installshield professional folder
2003 Sep 08
0
lmList with NAs
Hello R-Helpers,
I was trying to use the lmList function to get the lmList graphic similar to Pinheiro and Bates (pg 33). I did not have a problem creating the graphic when I used the Orthodont data frame or 2 other data sets when there are no missing values.
My data has missing values. Do I need to remove the missing values before the lmList function will work?
for a small example:
> a
2006 Apr 13
3
Penalized Splines as BLUPs using lmer?
Dear R-list,
I?m trying to use the lmer of the lme4 package to fit a linear mixed model
of the form
Y = Xb + Zu + e
and I can?t figure out how to control the covariance structure of u. I want
u ~ N(0,sigma^2*I).
More precisely I?m trying to smooth a curve through data using the
"Penalized Splines as BLUPs" method as described in Ruppert, Wand &
Carroll (2003).
So I have Z = [Z1