similar to: Multilevel models with mixed effects in R?

Greetings, Please forward Web links for the most recent R GUI and a list of add-ons that will run in the graphic interface. I need either the R GUI for (MS) Windows Vista, or a Web-based GUI that will run longitudinal models with covariates (e.g., multilevel modeling, latent growth curves, and ARIMA interrupted time-series). I believe that R's functions will meet nearly every program

We have a LAN network consisting mostly of Win95 machines, with a couple of NT boxes and 3 Linux-based Samba servers. Throw in a VAX running Pathworks and a partridge in a pear tree. Anyway, it seems that since Monday all three of the Samba boxes have dissapeared from the browse lists (from the POV of the Windows users). Typing in \\server only gives a "Network name not found error."

Dear All, I'm trying to model heteroscedasticity using a multilevel model. To do so, I make use of the nlme package and the weigths-parameter. Let's say that I hypothesize that the exam score of students (normexam) is influenced by their score on a standardized LR test (standLRT). Students are of course nested in "schools". These variables are contained in the

Hi R users! I am trying to learn some multilevel analysis, but unfortunately i am now very confused. The reason: http://www.ats.ucla.edu/stat/hlm/seminars/hlm_mlm/mlm_hlm_seminar.htm http://www.ats.ucla.edu/stat/sas/seminars/sas_mlm/mlm_sas_seminar.htm and MlmSoftRev. pdf from mlmRev package. >From what i see, the first two links seem to declare the level one variable as a random part (i

Paul: I may have found the issue (which is similar to your conclusion). I checked using egsingle in the mlmRev package as these individuals are strictly nested in this case: library(mlmRev) library(nlme) fm1 <- lme(math ~ year, random=~1|schoolid/childid, egsingle) fm2 <- lmer(math ~ year +(1|schoolid:childid) + (1|schoolid), egsingle) Checking the summary of both models, the output is

Hi R folks (Dr. Bates in particular), In August 2005, Dr. Bates mentioned that the documentation for lme4 "will be in the form of a book with the working title 'Multilevel Modeling in R'" and I'm just wondering if there is an estimated date of publication or if it's still a long way off. The Rnews article does a great job of introducing the package, but I'm

Dear ListeRs, I am trying to fit a heteroscedastic multilevel model using lmer{lme4- package). Take, for instance, the (fictive) model below. lmer(test.result ~ homework + Sex -1 + (1 | School)) Suppose that I suspect the error terms in the predicted values to differ between men and women (so, on the first level). In order to model this, I want the 'Sex'-variable to be random on

Hi there! Seems that my 2.0beta5 is not going as smoothly as I'd hoped. We've found a strange behaviour which is only happening when people first log in in the morning. When we log in, a number of drives are mapped to various directories on the Unix box. Things seem to go OK until another person logs in and tries to access a file already open by another user. Then they both seem to

Hi folks, I'm trying to help a fellow sysadmin configure Samba on his DG/UX server. He's installed 2.0.5a, and everything seemed to go well in the configure and make stages. However, when he tries to start 'smbd' by hand he gets the errors below. Our machine is binary compatible with his, and I sent him my copy of smbd (from version 2.0.3), but it made no difference. I had

Hi folks! I'm helping install samba 2.0.5.a on a Data General DG/UX Intel based Aviion server. The config and compile went well, but when trying to start the daemon, we get the following errors: [1999/10/07 11:49:44, 0] locking/shmem_sysv.c:sysv_shm_open(597) ERROR: root did not create the semaphore [1999/10/07 11:49:44, 0] locking/locking.c:locking_init(174) ERROR: Failed to

I've just upgraded our little network here to 2.0 beta 5. The server is a Data General Intel box running DGUX R4.20. Compile and install went incredibly well and things have just about working straight off. However, we experienced a little 'funny' this afternoon. A user was creating and deleting a postscipt file in a Unix directory. She then used Ghostview on the PC client to

I've spent the better part of two working days reading the NUT code and documentation and thinking about typical modern use cases for the software. I'm now questioning whether I want to get any further involved with this project, because it seems to me that the codebase is a huge and complicated pile of machinery mainly aimed at solving problems that no longer matter. I could be wrong

Ever since I upgraded from Samba 1.9.18 to 2.0.0, I've been having problems with applications started from a Samba share dying silently, or with an Illegal Instruction message, on NT 4.0 Workstation. Since the only configuration change has been the Samba upgrade, that would seem to be the orgin of the problem. Below is my smb.conf file, in case I have something configured (or not configured)

Hi, I am a COBOL programmer and I am busy teaching myself Rails and Ruby. In COBOL I can code this conditional If x = 1 next sentence else .......................... The "next sentence" statement enables me to get out of the conditional. How would I code the same thing in Ruby? In C you could use break but I understand that Ruby has no break statement. Regards, Paul

The browsing capability in Network Neighborhood disppears periodically. Usually, double-clicking on Network Neighborhood gives us a list of all the NT and Unix/samba boxes on the network segment (i.e. in the Workgroup). When browsing disppears, all we see is *Entire Network*, which has nothing in it. We run a unix/NT network with 6 unix servers and about 80 NT clients. We are running NT

Last question, I promise, I am running PopTop for PPTP on the same box as my firewall. I can connect to the box fine, but nothing will route between the VPN tunnel and the local hosts. I read the Some Hosts have Special Firewalling Requirements article and though it was what I needed, but either I don''t get it, or it doesn''t apply to me. Here is my config: Zones: #ZONE

Hi all, >str(df) `data.frame': 31837 obs. of 3 variables: $ x : num 410683 410700 410720 410740 410324 ... $ y : num 43136 43126 43123 43125 42709 ... $ wz: num -101.1 -94.9 -93.3 -94.5 30.8 ... >library(gstat) >g<-gstat(id="rv",form=wz~1,loc=~x+y,data=df,model=mat,nmax=500,set=list(average=1)) >str(g) List of 3 $ data :List of 1 ..$ rv:List of 10 ..

Hi, I have two dataframes: The first, df1, contains some missing data: cola colb colc cold cole 1 NA 5 9 NA 17 2 NA 6 NA 14 NA 3 3 NA 11 15 19 4 4 8 12 NA 20 The second, df2, contains the following: cola colb colc cold cole 1 1.4 0.8 0.02 1.6 0.6 I'm wanting all missing data in df1$cola to be replaced by the value of df2$cola.

Context: I have two or more rgl-based views of a given data set, perhaps fitting different models, or showing different things across views. I want to be able to hand-rotate, zoom, scale one view to something I like, and then show the other views with matching viewpoints and scaling. so that one could flip back/forth among graphs and see only the relevant differences. In 2D, all this usually

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