On Wed, Jun 18, 2014 at 2:26 PM, Judson judsonbl...@msn.com wrote:
Dear Dr. Bates,
I'm just learning R and I want to use it for
statistical problems and also some problems
that are just mathematical. Apparently I'm
not using the packages right and none of the
books I've found cover
Your question is better addressed to the R-help@R-project.org mailing list,
which I am copying on this reply.
You are confusing a statistical concept, the Fisher Information matrix,
with a numerical concept, the Hessian matrix of a scalar function of a
vector argument.
The Fisher information
On Fri, Aug 17, 2012 at 6:46 AM, Travis Perry travis.pe...@furman.edu wrote:
Dr. Bates,
Our department is considering replacing existing statistical
software packages in our curriculum with R, at my request. To better inform
this decision we are interested to know the prevalence of
On Sat, Jul 28, 2012 at 7:26 AM, Søren Højsgaard sor...@math.aau.dk wrote:
I want to create a sparse matrix of type dgCMatrix using the Matrix package
(and the matrix must be of this type even if other more compact
representations may exist). I do
library(Matrix)
On Thu, Feb 9, 2012 at 2:51 PM, barny garyb.dav...@btinternet.com wrote:
I've been trying to get some data from the National Survey for Family Growth
into R - however, the data is in a .dat file and the data I need doesn't
have any spaces or commas separating fields - rather you have to look
2011/12/28 Uwe Ligges lig...@statistik.tu-dortmund.de:
On 26.12.2011 15:30, narendarreddy kalam wrote:
Error in `[.data.frame`(x, order(x, na.last = na.last, decreasing =
decreasing)) : undefined columns selected during the execution of
following r sequence of commands
On Tue, Dec 20, 2011 at 8:20 AM, Jean V Adams jvad...@usgs.gov wrote:
Hi Jean,
khai wrote on 12/19/2011 11:26:55 PM:
Hi,
I'm very new to working with sparse matrices and would like to know how
I
can column permute a sparse matrix. Here is a small example:
M1 -
On Dec 7, 2011 4:44 PM, Erin Ryan e...@the-ryans.com wrote:
I am trying to specify a mixed model for my research, but I can't quite
get
it to work. I've spent several weeks looking thru various online sources
to
no avail. I can't find an example of someone trying to do precisely what
I'm
On Tue, Sep 13, 2011 at 12:54 PM, Joseph Park jpark...@att.net wrote:
Hi, I'm looking for some guidance on whether to use
S4 or Reference Classes for an analysis application
I'm developing.
I'm a C++/Python developer, and like to 'think' in OOD.
I started my app with S4, thinking
On Tue, Sep 13, 2011 at 4:11 PM, Steve Lianoglou
mailinglist.honey...@gmail.com wrote:
Hi,
On Tue, Sep 13, 2011 at 1:54 PM, Joseph Park jpark...@att.net wrote:
Hi, I'm looking for some guidance on whether to use
S4 or Reference Classes for an analysis application
I'm developing.
On Fri, Jun 3, 2011 at 7:03 PM, Matias Salibian-Barrera
msalib...@yahoo.ca wrote:
Hello,
This simple SVD calculation (commands are copied immediately below) crashes
on my Ubuntu machine (R 2.13.0). However it works fine on my Windows 7
machine, so I suspect there's a problem with (my?)
On Thu, Apr 21, 2011 at 5:34 PM, peter dalgaard pda...@gmail.com wrote:
On Apr 21, 2011, at 16:00 , Bert Gunter wrote:
Folks:
It is perhaps worth noting that this is probably a Type III error: right
answer to the wrong question. The right question would be: what data
structures and
On Wed, Apr 20, 2011 at 8:37 AM, Tobias Abenius
tobias.aben...@chalmers.se wrote:
Since I installed R 2.13 I cannot use the transpose method t on sparse
matrices inside my package. Outside the package works. Is there something
new that I have to import methods? Can I then import everything
On Fri, Apr 15, 2011 at 8:45 AM, Ben Bolker bbol...@gmail.com wrote:
Kevin Wright kw.stat at gmail.com writes:
I am trying to teach myself R and replicate some previous SAS analysis.
Could someone please help me translate the following SAS code into R.
Proc mixed method=ml
Class Group
On Thu, Apr 14, 2011 at 11:47 PM, Christian Gunning x...@unm.edu wrote:
On Thu, Apr 14, 2011 at 7:02 PM,
rcpp-devel-requ...@r-forge.wu-wien.ac.at wrote:
I was able to write a very short C++ function using the Rcpp package
that provided about a 1000-fold increase in speed relative to the best
My colleague Sunduz Keles once mentioned a similar problem to me. She
had a large sample from a reference distribution and a test sample
(both real-valued in her case) and she wanted, for each element of the
test sample, the proportion of the reference sample that was less than
the element. It's
-project.org] On Behalf
Of Douglas Bates [ba...@stat.wisc.edu]
Sent: Thursday, April 14, 2011 6:22 PM
To: William Dunlap
Cc: r-help@r-project.org; Sunduz Keles; rcpp-devel; Kevin Ummel
Subject: Re: [R] Find number of elements less than some number:
Elegant/fastsolution needed
My colleague Sunduz
The first thing to do is try another mirror. The official (or as
official as we ever get about anything) U.S. mirror is
http://cran.us.R-project.org
They tend to be very good about updating. Presently the source
package for plyr is at version 1.5 and the binary versions are both at
1.4.1
On
On Wed, Apr 6, 2011 at 3:44 PM, Christopher Desjardins
cddesjard...@gmail.com wrote:
Hi,
I have longitudinal school suspension data on students. I would like to
figure out how many students (id_r) have no suspensions (sus), i.e. have a
code of '0'. My data is in long format and the first 20
On Sun, Apr 3, 2011 at 11:42 AM, David Winsemius dwinsem...@comcast.net wrote:
On Apr 3, 2011, at 12:14 PM, Samuel Le wrote:
Dear all,
I would like to log the calls to my functions. I am trying to do this
using the function match.call():
fTest-function(x)
{ theCall-match.call()
On Thu, Mar 31, 2011 at 4:02 AM, Daniel Kaschek
daniel.kasc...@physik.uni-freiburg.de wrote:
Hello,
I use nls.profile to compute confidence intervals of parameter estimates
of a non-linear model. When computing the profiles, the model function
produces an error for certain parameter
On Mon, Mar 21, 2011 at 2:03 PM, Justin Haynes jto...@gmail.com wrote:
Is there a way to do this in R? I have data in the form:
57_input 57_output 58_input 58_output etc.
can i use a for loop (i in 57:n) that plots only the outputs? I want
this to be robust so im not specifying a
On Mon, Feb 21, 2011 at 10:06 PM, dadrivr dadr...@gmail.com wrote:
Thanks Dennis,
The code works for perfectly for the data in the example. For some reason,
however, I get the following error message when I use a different data set:
preds - expand.grid(age = c(30,36,42), Subject =
On Sat, Feb 19, 2011 at 12:56 AM, Rohit Pandey rohitpandey...@gmail.com wrote:
Hi Christopher/ Dirk,
Thank you very much for your replys. I think the idea of using inline as you
suggest is the best way to start off with using c++ with R. I went through
your examples and also plenty I found on
On Thu, Feb 17, 2011 at 10:02 AM, Alex F. Bokov
ahupxo...@sneakemail.com wrote:
Motivation: during each iteration, my code needs to collect tabular data (and
use it only during that iteration), but the rows of data may vary. I thought
I would speed it up by preinitializing the matrix that
On Sun, Feb 6, 2011 at 10:56 AM, David Winsemius dwinsem...@comcast.net wrote:
On Feb 6, 2011, at 10:28 AM, Rohit Pandey wrote:
Hi,
I have been using R for close to two years now and have grown quite
comfortable with the language. I am presently trying to implement an
optimization routine
On Fri, Feb 4, 2011 at 8:44 PM, Laura Smith smithlaura...@gmail.com wrote:
Hi!
Does anyone have a numeric example for calculating BLUE and BLUP, please?
You will need to be more specific. BLUE is an acronym for Best
Linear Unbiased Estimator and BLUP for Best Linear Unbiased
Predictor. So the
On Tue, Feb 1, 2011 at 10:51 AM, Luana Marotta lucsmaro...@gmail.com wrote:
Dear R-users,
I'm running a lmer model using the lme4 package. My dependent variable is
dichotomous and I'm using the binomial family. The results
are slightly different from the HLM results based on a Bernoulli
?system.time
On Thu, Jan 27, 2011 at 10:31 AM, Alaios ala...@yahoo.com wrote:
Dear list members,
I would like to measure how much time one function call makes from the time
is call until the time it returns.
Could you please tell me if that is possible in R?
Best Regards
Alex
On Tue, Jan 25, 2011 at 1:14 PM, Akram Khaleghei Ghosheh balagh
a.khaleg...@gmail.com wrote:
Hello ;
Do you know what is the default value of starting value in glm ? glm(...,
start=c(),... )
I know that it is NULL by default but it need a value to start iteration .
what is this value?
On Fri, Jan 21, 2011 at 3:51 AM, kamel gaanoun kamel.gaan...@gmail.com wrote:
Hi Everybody,
My problem is that nlminb doesn't converge, in minimising a logLikelihood
function, with 31*6 parameters(2 weibull parameters+29 regressors repeated 6
times).
Hmm, the length of the parameter vector
On Wed, Jan 5, 2011 at 1:22 PM, David Winsemius dwinsem...@comcast.net wrote:
On Jan 5, 2011, at 10:03 AM, Young Cho wrote:
Hi,
I am doing some simulations and found a bottle neck in my R script. I made
an example:
a = matrix(rnorm(500),100,5)
tt = Sys.time();
On Mon, Jan 3, 2011 at 12:15 PM, Ethan Arenson
ethan.a.aren...@gmail.com wrote:
Hi.
I know that R computes sums of squares based on the diagonal of
t(Q) %*% y %*% t(y) %*% Q,
where Q comes from the QR-decomposition of the model matrix.
So, how do you know that? When I look at the code for
On Mon, Dec 13, 2010 at 8:20 AM, Ethan Arenson
ethan.a.aren...@gmail.com wrote:
Consider the following missing data problem:
y = c(1, 2, 2, 2, 3)
a = factor(c(1, 1, 1, 2, 2))
b = factor(c(1, 2, 3, 1, 2))
fit = lm(y ~ a + b)
anova(fit)
Analysis of Variance Table
Response: y
On Thu, Dec 9, 2010 at 5:37 AM, 朱曼 zhuman.priv...@gmail.com wrote:
Hi,all!
I encountered a problem not-yet-implemented method for list %*%
dgCMatrix when I tried diagr %*% design_mat, where
diagr-diag(vr,100), vr is a vector with 100 elements, and design_mat is a
sparse matrix with dimension
On Mon, Dec 6, 2010 at 1:11 PM, scott white distributedin...@gmail.com wrote:
Btw, forgot to mention I am using the standard Matrix package and I am
running version 2.10.1 of R.
On Mon, Dec 6, 2010 at 11:04 AM, scott white
distributedin...@gmail.comwrote:
I have a very sparse square matrix
On Wed, Dec 1, 2010 at 9:02 AM, Ben Bolker bbol...@gmail.com wrote:
Peter Ehlers ehlers at ucalgary.ca writes:
It might be a good idea not to use an outdated version of R.
I don't see your problem in R 2.12.0.
Peter Ehlers
On 2010-12-01 05:44, Jean.Coursol at math.u-psud.fr wrote:
On Tue, Nov 16, 2010 at 10:30 AM, poko2000 quan.poko2...@gmail.com wrote:
Hi I am a newbie in R.
I have data with dim of 20.
How to use lm if i want to do regression with the whole design matrix? My y
is the first column.
the left are xs.
Thanks a lot.
Do you have the data stored in a
On Tue, Nov 16, 2010 at 11:09 AM, skan juanp...@gmail.com wrote:
What's the differente betwen using plot and using print in order to
plot a graph?
For example in order to plot the result of a histogram.
Could you give an example?
It seems that you are referring to graphics functions in
It is often more effective to send questions about lmer or glmer to
the r-sig-mixed-mod...@r-project.org mailing list, which I am cc:ing
on this response.
On Tue, Nov 16, 2010 at 3:25 AM, Annika annika.opperb...@jyu.fi wrote:
Dear list,
I am new to this list and I am new to the world of R.
I am cc:ing the r-sig-mixed-mod...@r-project.org mailing list on this
reply as such questions are often answered more quickly on that list.
On Tue, Nov 16, 2010 at 2:00 PM, Daniel Jeske daniel.je...@ucr.edu wrote:
Dear R Help,
I believe the glmer() function in lme4 automatically fits an
I don't know about the statmod package and the gauss.quad function but
generally the definition of Gauss-Hermite quadrature is with respect
to the function that is multiplied by exp(-x^2) in the integrand. So
your example would reduce to summing the weights.
On Sun, Nov 14, 2010 at 11:18 AM,
On Mon, Nov 1, 2010 at 11:04 PM, Santosh Srinivas
santosh.srini...@gmail.com wrote:
Hello Group,
This is an open-ended question.
Quite fascinated by the things I can do and the control I have on my
activities since I started using R.
I basically have been using this for analytical related
On Sun, Oct 31, 2010 at 2:35 AM, Carabiniero ja...@troutnut.com wrote:
I haven't been able to fully make sense of the conflicting online information
about whether and how to specify nesting structure for a nested, mixed
model. I'll describe my experiment and hopefully somebody who knows lme4
On Tue, Oct 26, 2010 at 12:27 PM, Dimitri Liakhovitski
dimitri.liakhovit...@gmail.com wrote:
Hello,
and sorry for asking a question without the data - hope it can still
be answered:
I've run two things on the same data:
# Using lme:
mix.lme - lme(DV ~a+b+c+d+e+f+h+i, random = random = ~
On Thu, Oct 21, 2010 at 2:00 PM, Ben Bolker bbol...@gmail.com wrote:
Michal Figurski figurski at mail.med.upenn.edu writes:
I have a data set of roughly 10 million records, 7 columns. It has only
about 500MB as a csv, so it fits in the memory. It's painfully slow to
do anything with it, but
On Fri, Oct 22, 2010 at 9:13 AM, Czerminski, Ryszard
ryszard.czermin...@astrazeneca.com wrote:
I want to fit a linear model with fixed slope e.g. y = x + b
(instead of general: y = a*x + b)
Is it possible to do with lm()?
Yes. The simplest way is to fit
lm(y - a*x ~ 1)
which will give you
Although I know there is another message in this thread I am replying
to this message to be able to include the whole discussion to this
point.
Gregor mentioned the possibility of extending the compiled code for
cumsum so that it would handle the matrix case. The work by Dirk
Eddelbuettel and
On Mon, Sep 27, 2010 at 3:04 AM, Petr PIKAL petr.pi...@precheza.cz wrote:
Hi
I noticed that nobody answered your question yet so here is my try.
If you want to see what objects are in your environment you can use ls()
but its output is only names of objects. Here is a function I use a long
I haven't had the time to keep up with this discussion, or many of the
other discussions on the R-SIG-Mixed-Models email list. I swamped
with other duties at present.
It is important to remember that the nlme and lme4 packages take a
model specification and provide code to evaluate the deviance.
On Tue, Sep 21, 2010 at 1:39 PM, Douglas Bates ba...@stat.wisc.edu wrote:
I haven't had the time to keep up with this discussion, or many of the
other discussions on the R-SIG-Mixed-Models email list. I swamped
with other duties at present.
It is important to remember that the nlme and lme4
On Tue, Sep 21, 2010 at 4:21 PM, Peter Dalgaard pda...@gmail.com wrote:
On 09/21/2010 09:02 PM, Douglas Bates wrote:
On Tue, Sep 21, 2010 at 1:39 PM, Douglas Bates ba...@stat.wisc.edu wrote:
I haven't had the time to keep up with this discussion, or many of the
other discussions on the R-SIG
On Wed, Sep 15, 2010 at 3:48 PM, Matias Salibian-Barrera
msalib...@yahoo.ca wrote:
Hi there,
I'm trying to install the package RcppArmadillo in my R 2.11.1 which I
installed
and regularly update via Ubuntu's repositories.
When I try to install RcppArmadillo from CRAN I get:
On Thu, Aug 5, 2010 at 9:31 AM, rod84 ngueye...@hotmail.com wrote:
Dear R users,
I recently downloaded the library lme4a by
svn checkout svn://svn.r-forge.r-project.org/svnroot/lme4.
I tried to install the library lme4a by copying the downloaded document in
the location where all the R
On Wed, Aug 4, 2010 at 2:09 PM, Erik Iverson er...@ccbr.umn.edu wrote:
Hello,
I have a problem which has bitten me occasionally. I often need to
prepare graphs for many variables in a data set, but seldom for all.
or for any large number of sequential or sequentially named variables.
Often
On Wed, Jul 14, 2010 at 4:23 PM, paul s r-project@queuemail.com wrote:
hi -
i just started using R as i am trying to figure out how perform a linear
regression on a huge matrix.
i am sure this topic has passed through the email list before but could not
find anything in the archives.
On OS X you need to install the source package for lme4 as the binary
package fails one of the tests. We have been unable to reproduce this
failure under other operating systems, which makes it hard to debug.
On Tue, Jul 6, 2010 at 11:09 AM, Alex Foley alex_foley_...@yahoo.com wrote:
Hi,
I
On Mon, Jun 28, 2010 at 12:28 PM, Doran, Harold hdo...@air.org wrote:
Two things I think are some of the best developments in statistics and
production are the lattice package and the beamer class for presentation in
Latex. One thing I have not become very good at is properly sizing my
On Mon, Jun 21, 2010 at 8:38 PM, David Winsemius dwinsem...@comcast.net wrote:
On Jun 21, 2010, at 9:18 PM, Duncan Murdoch wrote:
On 21/06/2010 9:06 PM, G FANG wrote:
Hi,
I want to get the unique set from a large numeric k by 1 vector, k is
in tens of millions
when I used the matlab
On Thu, Jun 17, 2010 at 10:50 AM, Barry Rowlingson
b.rowling...@lancaster.ac.uk wrote:
On Thu, Jun 17, 2010 at 3:33 PM, Doran, Harold hdo...@air.org wrote:
I have a function that is an iterative process for estimating some MLEs. I
want to print some progress to screen as the process iterates.
On Sat, Jun 12, 2010 at 6:18 AM, Tal Galili tal.gal...@gmail.com wrote:
Hello Gabor, Matt, Dirk.
Thank you all for clarifying the situation.
So if I understand correctly then:
1) Changing the BLAST would require specific BLAST per computer
configuration (OS/chipset).
It's BLAS (Basic
On Sat, Jun 12, 2010 at 8:37 AM, Dr. David Kirkby
david.kir...@onetel.net wrote:
R 2.10.1 is used in the Sage maths project. Several recommended packages
(Matrix, class, mgcv, nnet, rpart, spatial, and survival) are failing to
build on Solaris 10 (SPARC).
Have you checked the dependencies for
The lm and aov functions can take a matrix response allowing you to
fit all of the responses for a single attribute simultaneously.
On Thu, Jun 10, 2010 at 8:47 AM, melissa mellep...@orange.fr wrote:
Dear all R users,
I want to realize 800 000 ANOVAS and to store Sum of Squares of the effects.
On Tue, Jun 8, 2010 at 7:10 AM, Enrico Colosimo enrico...@gmail.com wrote:
Hello,
I am having some trouble running a very simple
example. I am running a logistic regression entering the SAME data set
in two different forms and getting different values for the deviance residual.
Just look
On Mon, May 24, 2010 at 6:24 PM, Robin Jeffries rjeffr...@ucla.edu wrote:
I read somewhere (help list, documentation) that the random effects in lme4
uses sparse matrix technology.
Yes. That is why there is such a close link between the Matrix and
lme4 packages. The sparse matrix methods in
On Sun, May 23, 2010 at 5:09 AM, Peter Ehlers ehl...@ucalgary.ca wrote:
On 2010-05-23 0:56, john smith wrote:
Hi,
I am trying to implement Higham's algorithm for correcting a non positive
definite covariance matrix.
I found this code in R:
As Frank mentioned in his reply, expecting to estimate tens of
thousands of fixed-effects parameters in a logistic regression is
optimistic. You could start with a generalized linear mixed model
instead
library(lme4)
fm1 - glmer(resp ~ 1 + (1|f1) + (1|f2) + (1|f1:f2), mydata, binomial))
If you
Google the name dgesdd to get the documentation where you will find
that the error code indicates that the SVD algorithm failed to
converge. Evaluation of the singular values and vectors is done via
an iterative optimization and on some occasions will fail to converge.
Frequently this is
image applied to a sparseMatrix object uses lattice functions to
create the image. As described in R FAQ 7.22 you must use
print(image(x))
or
show(image(x))
or even
plot(image(x))
when a lattice function is called from within another function.
On Wed, Apr 28, 2010 at 1:20 PM, Gildas Mazo
You probably want to use substitute() to construct your formula and be
careful of the distinction between character strings and names
substitute(foo ~ bar, list(foo = as.name(y), bar = as.name(x)))
y ~ x
On Fri, Apr 9, 2010 at 2:06 PM, Nic Rivers njriv...@sfu.ca wrote:
Dear R-users:
I would
On Thu, Apr 8, 2010 at 11:32 AM, satu satu2...@live.com.ar wrote:
I want to run some R script using the inline package (which allows to create
and run inline C++ code in my humble understanding).
So, after loading the required packages and copy and paste the example that
runs C code (in the
On Mon, Apr 5, 2010 at 3:13 PM, Roger DeAngelis(xlr82sas)
rdean...@amgen.com wrote:
Hi,
This is not meant to be critical of R, but is intended as
a possible source for improvements to R.
SAS needs the competition.
I am reasonably knowledgeable about
R
SAS-(all products including IML)
On Sat, Mar 27, 2010 at 4:19 AM, n.via...@libero.it n.via...@libero.it wrote:
Hi I have a question,
as im not able to import a csv file which contains a big dataset(100.000
records) someone knows how many records R can handle without giving problems?
What im facing when i try to import the
The TIMSS2007 database http://timss.bc.edu/TIMSS2007/idb_ug.html seems
to provide both kinds of universal data formats - either SPSS saved
data sets or SAS saved data sets. (Yes, I am being sarcastic.)
These, of course, are accompanied by massive codebooks explaining the
nature of each of the
Thanks very much, Marc.
So did you really read 110 pages of the User Guide to find this out or
did you do something more clever?
On Thu, Mar 25, 2010 at 4:38 PM, Marc Schwartz marc_schwa...@me.com wrote:
On Mar 25, 2010, at 3:54 PM, Douglas Bates wrote:
The TIMSS2007 database http
It is not easy to decide what predict should return for a linear
mixed model, let alone the more complicated cases. Do you want
predictions based on the fixed-effects only or based on a combination
of the fixed-effects and the random-effects? For the lme function in
the nlme package we allowed
On Thu, Mar 18, 2010 at 6:26 AM, Dieter Menne
dieter.me...@menne-biomed.de wrote:
I am trying to use nlme and coxme in one Sweave document. I have read the
thread in r-devel on the subject,
http://markmail.org/thread/snchg6ynofrzbf2v
and nlme::fixef works, but I did not understand what
On Wed, Mar 17, 2010 at 10:25 AM, Erik Iverson er...@ccbr.umn.edu wrote:
Paul Miller wrote:
Hello Everyone,
I have just started learning R and am in the process of figuring out
what it can and can't do. I must say I am very impressed with R so
far and am amazed that something this good
On Fri, Mar 5, 2010 at 12:16 PM, Gabor Grothendieck
ggrothendi...@gmail.com wrote:
On Fri, Mar 5, 2010 at 12:58 PM, Matthew Dowle mdo...@mdowle.plus.com wrote:
As far as I know you are wrong that there is no moderator. There are in
fact an uncountable number of people who are empowered to
On Wed, Feb 24, 2010 at 3:56 PM, Duncan Murdoch murd...@stats.uwo.ca wrote:
On 24/02/2010 4:31 PM, Georg Ehret wrote:
Dear R communtiy,
I do not understand why this does not work...:
betaS$SBP
[1] 0.03274 -0.04216 -0.08986 -0.45980 0.60320 -0.63070 -0.05682
0.20130
t-c(betaS$SBP)
On Sat, Feb 20, 2010 at 4:28 AM, Dieter Menne
dieter.me...@menne-biomed.de wrote:
Daniel-6 wrote:
Hello, I'm trying to add lme results in a table with lm coef results, but
as
I know, estout or xtabel cannot support lme objects.
I'm a new in R and I'll appreciate some helpful comments.
On Sat, Feb 20, 2010 at 10:27 AM, Dieter Menne
dieter.me...@menne-biomed.de wrote:
Douglas Bates-2 wrote:
On Sat, Feb 20, 2010 at 4:28 AM, Dieter Menne
For most other model fitting functions the sequence
coef(summary(mymodel))
works. Unfortunately, in the nlme package we assigned
On Thu, Feb 18, 2010 at 12:36 PM, Bert Gunter gunter.ber...@gene.com wrote:
The key dates are 1938 and 1962. The FDC act of 1938 essentially mandated
(demonstration of) safety. The tox testing infrastructure grew from that.At
that time, there were no computers, little data, little statistics
On Tue, Feb 16, 2010 at 9:05 AM, Shige Song shiges...@gmail.com wrote:
Dear All,
I am trying to fit a 2-level random intercept logistic regression on a
data set of 20,000 cases. The model is specified as the following:
m1 - glmer(inftmort ~ as.factor(cohort) + (1|code), family=binomial,
This is similar to another question on the list today.
On Tue, Feb 16, 2010 at 4:39 AM, Luisa Carvalheiro
lgcarvalhe...@gmail.com wrote:
Dear R users,
I am having problems using package lme4.
I am trying to analyse the effect of a continuous variable (Dist_NV)
on a count data response
,
Luisa
On Tue, Feb 16, 2010 at 5:35 PM, Douglas Bates ba...@stat.wisc.edu wrote:
This is similar to another question on the list today.
On Tue, Feb 16, 2010 at 4:39 AM, Luisa Carvalheiro
lgcarvalhe...@gmail.com wrote:
Dear R users,
I am having problems using package lme4.
I am trying
feel that I might get some very
basic specification wrong in my R model...
Best,
Shige
On Tue, Feb 16, 2010 at 10:29 AM, Douglas Bates ba...@stat.wisc.edu wrote:
On Tue, Feb 16, 2010 at 9:05 AM, Shige Song shiges...@gmail.com wrote:
Dear All,
I am trying to fit a 2-level random intercept
On Sat, Feb 13, 2010 at 7:09 PM, Daniel Malter dan...@umd.edu wrote:
It seems to me that your question is more about the econometrics than about
R. Any introductory econometric textbook or compendium on econometrics will
cover this as it is a basic. See, for example, Greene 2006 or Wooldridge
On Fri, Feb 12, 2010 at 4:25 PM, blue sky bluesky...@gmail.com wrote:
?'`' shows the following:
Single and double quotes delimit character constants. They can be
used interchangeably but double quotes are *preferred* (and character
constants are printed using double quotes), so single quotes
On Fri, Feb 12, 2010 at 9:22 AM, Arnaud Mosnier a.mosn...@gmail.com wrote:
Dear useRs,
Just a little post to provide the answer of a problem that took me
some time to resolve !
Hope that reading this will permit the others to avoid that error.
When using the subset function, writing
On Tue, Feb 9, 2010 at 4:38 AM, Demirtas, Hakan demir...@uic.edu wrote:
Does lmer do three-level mixed-effects models?
Yes.
What forms of outcome
variables can it handle (continuous, survival, binary)? I'd appreciate any
help.
Continuous outcomes for lmer. glmer can handle binary
On Sun, Feb 7, 2010 at 2:40 PM, Emmanuel Charpentier
charp...@bacbuc.dyndns.org wrote:
Note : this post has been motivated more by the hierarchical data
subject than the aside joke of Douglas Bates, but might be of interest
to its respondents.
Le vendredi 05 février 2010 à 21:56 +0100, Peter
On Sat, Feb 6, 2010 at 2:46 PM, David Winsemius dwinsem...@comcast.net wrote:
On Feb 6, 2010, at 3:29 PM, Ravi Ramaswamy wrote:
Hi - I am not familiar with R. Could I ask you a quick question?
When I read a file like this, I get an error. Not sure what I am doing
wrong. I use a MAC. How
On Sat, Feb 6, 2010 at 4:45 AM, Martin Bulla bu...@centrum.cz wrote:
Does anybody knows what this error message means: Error in object$terms : $
operator not defined for this S4 class
The error message means what it says and it doesn't come from lmer, it
comes from the drop1 function being
On Sun, Jan 31, 2010 at 10:24 PM, Anton du Toit atdutoitrh...@gmail.com wrote:
Dear R-helpers,
I’m writing for advice on whether I should use R or a different package or
language. I’ve looked through the R-help archives, some manuals, and some
other sites as well, and I haven’t done too well
On Tue, Jan 19, 2010 at 9:26 AM, Martin Maechler
maech...@stat.math.ethz.ch wrote:
Scanning for 'Matrix' in old R-help e-mail, I found
GA == Gad Abraham gabra...@csse.unimelb.edu.au
on Fri, 27 Nov 2009 13:45:00 +1100 writes:
GA Hi,
GA I'd like to store large covariance matrices
On Sat, Jan 16, 2010 at 8:20 AM, Walmes Zeviani
walmeszevi...@hotmail.com wrote:
Doug,
It appears you are mixing nlme and lme4 formulation type.
On nlme library you type
lme(y~x, random=~1|subjetc)
On lme4 library you type
lmer(y~x+(1|subject))
You mixed them.
At your disposal.
On Fri, Jan 15, 2010 at 10:00 AM, Ben Bolker bol...@ufl.edu wrote:
John Kane jrkrideau at yahoo.ca writes:
I've only been using R for about 2.5 years but and I'm not all that good but
I vote for - .
I think the deciding factor is in RSiteSearch() and the various manuals.
Almost
On Mon, Jan 4, 2010 at 6:24 AM, Walmes Zeviani
walmeszevi...@hotmail.com wrote:
AD Hayward wrote:
Dear all,
I'm attempting to use a piecewise regression to model the trajectory
of reproductive traits with age in a longitudinal data set using a
mixed model framework. The aim is to find
I forgot to cc: the list on this response.
-- Forwarded message --
From: Douglas Bates ba...@stat.wisc.edu
Date: Wed, Dec 30, 2009 at 8:05 AM
Subject: Re: [R] glm error: cannot correct step size
To: John Sorkin jsor...@grecc.umaryland.edu
On Wed, Dec 30, 2009 at 7:50 AM, John
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