search for: kveder

...em as a vector. I could do it through converting top string, parsing the string and converting back. Is there another way. It would look something like that: > a<-1234 > a [1] 1234 > b<-foo(a) > b [,1] [,2] [,3] [,4] [1,] 1 2 3 4 Thanks! Andrej _________ Andrej Kveder, M.A. researcher Institute of Medical Sciences SRS SASA; Novi trg 2, SI-1000 Ljubljana, Slovenia phone: +386 1 47 06 440 fax: +386 1 42 61 493 [[alternative HTML version deleted]]

...ametrization StdDev Corr (Intercept) 0.385620605 (Intr) v11 0.003147431 -0.048 Residual 0.450012367 Number of Observations: 729 Number of Groups: 50 If this give you some more insight to my problem. I would reallly appreciate any suggestion. Thanks Andrej -----Original Message----- From: Andrej Kveder [mailto:andrejk@zrc-sazu.si] Sent: Monday, September 29, 2003 7:05 PM To: R-Help Subject: predicting values from the LME Dear listers, I experinced a problem prdicting the values using the LME with multilevel data. I have NA's in my dependent variable and the model is fitted only on the comp...

...have not. For the matter of beeing more exact I''m interested in the dealing with missing survey data and Joe Shafer has the routines in S posted on his web site. Could you advise how I could get them to work in R? Thank you very much for the raply. Best regards Andrej _________ Andrej Kveder, M.A. researcher Institute of Medical Sciences SRS SASA; Novi trg 2, SI-1000 Ljubljana, Slovenia phone: +386 1 47 06 440 fax: +386 1 42 61 493 [[alternate HTML version deleted]]

...-"~ x1" d<-groupedData(my.formula | inter, data=d.n.data) model<-lme(my.formula, data=d, random=my.ran | group) I know this doesn't work. The error reports wrong type for the formula. Is there a way to do this? Thanks for all the help and suggestions Andrej _________ Andrej Kveder, M.A. researcher Institute of Medical Sciences SRS SASA; Novi trg 2, SI-1000 Ljubljana, Slovenia phone: +386 1 47 06 440 fax: +386 1 42 61 493

...um is for accounting of the level 2 predictors, that I don't presently have, but will the problem is V_hat_qqj which are the variances of the coefficients. I can't get to them. Does anybody have an idea how to get to them? I would really appreciate any suggestion. Andrej _________ Andrej Kveder, M.A. researcher Institute of Medical Sciences SRS SASA; Novi trg 2, SI-1000 Ljubljana, Slovenia phone: +386 1 47 06 440 fax: +386 1 42 61 493 [[alternative HTML version deleted]]

...t is most annoying is that when an error occurs, the program stops the simulation run and not just skips the model results. Does anybody have an idea what to do about it? Any suggestions would be most helpfull. I can also send the R program file if that would help. Thanks Andrej _________ Andrej Kveder, M.A. researcher Institute of Medical Sciences SRS SASA; Novi trg 2, SI-1000 Ljubljana, Slovenia phone: +386 1 47 06 440 fax: +386 1 42 61 493 [[alternative HTML version deleted]]

Hi! I'm pretty raw when working with the R models (linear or not). I'm wondering has anybody worked with the NLME library and dichotomous outcomes. I have a binary outcome variable that I woul like to model in a nested (multilevel) model. I started to fit a logistic model to a NLS function, but could not suceed. I know there are better ways to do it in R with either the LRM or GLM wih

...evel specification (which is 0 by default) and I transformed the new data to be groupedData with no luck. I have tried the example from the Pinheiro,Bates book and it works - mine doesn't. Does anybody have an idea what could be wrong? Thanks for all the suggestions. Andrej _________ Andrej Kveder, M.A. researcher Institute of Medical Sciences SRS SASA; Novi trg 2, SI-1000 Ljubljana, Slovenia phone: +386 1 47 06 440 fax: +386 1 42 61 493 [[alternative HTML version deleted]]

...recursion. Does anybody have an experiance with recursion? I haven't done much with it. Would it speed up the process? My problem is grave since one set of initial conditions tends to run for 20 min on a R1.8.0 Win XP, P 2,4GHz, 512MbRam. Thanks for the suggestions... Andrej _________ Andrej Kveder, M.A. researcher Institute of Medical Sciences SRS SASA; Novi trg 2, SI-1000 Ljubljana, Slovenia phone: +386 1 47 06 440 fax: +386 1 42 61 493 [[alternative HTML version deleted]]

...el? Has anyone some experience with that? I also have one concern... since the SE in the lme models are not just ordinary SE... is there any reservation in using a regular bootstrap on them? Are there any special bootstrap tools for that? thanks for all the help best Andrej _________ Andrej Kveder, M.A. researcher Institute of Medical Sciences SRS SASA; Novi trg 2, SI-1000 Ljubljana, Slovenia phone: +386 1 47 06 440 fax: +386 1 42 61 493 [[alternative HTML version deleted]]

I've got a PhD student starting this year. She'll be working on data mining. She has asked for a reading list while she's still in her home country, which is a really good sign. Her cosupervisor and I don't (think we) have any problem with choosing things that are specifically about data mining, but there are some statistical ideas (sampling, exploratory-vs-confirmatory,

Hi , I am programming on a windows system and have problems using notepad which is my main editor.Each time I try to open the editor from the R IDE, R crashes. So I always have to copy my codes from notepad and paste in R to run them. CAn someone tell me if I am doing anything wrong or is there a better editor(freeware) which I could get. thanks cilver ===== ===================== Sylvie B.

We are trying to compile and run the ttest.c example that comes with R (in C:\Program Files\R\rw1081\src\library\windlgs\src\ttest.c). After compiling it with MS Visual C++ we load the DLL with dyn.load. So far it seems good, but when we try to call it from R (after running C:\Program Files\R\rw1081\src\library\windlgs\R\windlgs.R) R crashes. We have tried changing the exports from DLL but have

...---------------- Message: 19 Date: Thu, 26 Jun 2003 10:54:50 -0400 (EDT) From: "J.R. Lockwood" <lockwood at rand.org> Subject: RE: [R] within group variance of the coeficients in LME To: Harold Doran <hdoran at nasdc.org> Cc: R-Help <r-help at stat.math.ethz.ch>, Andrej Kveder <andrejk at zrc-sazu.si> Message-ID: <Pine.LNX.4.33.0306261037560.6707-100000 at penguin.rand.org> Content-Type: TEXT/PLAIN; charset=US-ASCII > > Dear listers, > > I can't find the variance or se of the coefficients in a multilevel model > using lme. >...