search for: nbmm

...h the more complicated turns out to be overparameterized) Using the random effects module of AD Model Builder we have developed a shared library (Windows dll) that can be called from R via the driver function glmm.admb(). The function can be downloaded from http://otter-rsch.com/admbre/examples/nbmm/nbmm.html The two models of Booth et al are fit by the commands: glmm.admb(y~Base*trt+Age+Visit,random=~1,group="subject",data=epil2) glmm.admb(y~Base*trt+Age+Visit,random=~Visit,group="subject",data=epil2) I will be happy to receive feedback on the function glmm.admb(). Be...

..., lower.tail, log.p) The warning is generated because the df=0. This appears to be because the number of parameters is being incorrectly calculated (they should be 9 and 8 respectively). I had a look at the function call in R, and the problem appears to be because npar is obtained from the file nbmm.par on line 140 of the function out$npar <- as.numeric(scan("nbmm.par", what = "", quiet = TRUE)[6]) which doesn't appear to change between calculations (the file seems to hvae been created the first time I ran glmm.admb, and not to have been modified since). Replac...

...penn.edu/R/Rhelp02a/archive/48646.html *this refers to the random effects module of AD Model Builderthat can be called from R via the driver functon glmm.admb(). Their example problem fits the model with a negative binomial. The function can be downloaded from http://otter-rsch.com/admbre/examples/nbmm/nbmm.html ************ *********** My Original Query Greetings R Users! I have a data set of count responses for which I have made repeated observations on the experimental units (stream reaches) over two air photo dates, hence the mixed effect. I have been using Dr. Jim Lindsey's GLMM func...

...ot recognized as an internal or external command, operable program or batch file. Error in glmm.admb(y ~ Base * trt + Age + Visit, random = ~Visit, group = "subject",  :   The function maximizer failed In addition: Warning messages: 1: In file.remove(std_file) :   cannot remove file 'nbmm.std', reason 'No such file or directory' 2: In shell(paste(.path.package("glmmADMB"), "/admb/", file_name, ".exe",  :   'C:/Documents and Settings/eugen.pircalabelu/My Documents/R/win-library/2.7/glmmADMB/admb/nbmm.exe -maxfn 500 ' execution failed...

...the setting to impSamp=0 , it means i can only run the code under Laplace approximation but importance sampling. does anyone have same problem here ? second question: although i used save.dir=NULL option , but i can not see the folder which saves the intermedia output, i didn't find the nbmm.std file which save the BLUP. the strangest thing is i can see a temporary folder name as _glmm_ADMB_temp_dir_ when programing is running , but this fold mysteriously disappeared after the programing done . searched the whole computer desn't find any clue. I posted my output below. I reall...

library(glmmADMB) #Example for glmm.admb data(epil2) glmm.admb(y~Base*trt+Age +Visit,random=~Visit,group="subject",data=epil2,family="nbinom") Gives: Error in glmm.admb(y ~ Base * trt + Age + Visit, random = ~Visit, group = "subject", : The function maximizer failed ****************** R version 2.4.1 RC (2006-12-14 r40181) powerpc-apple-darwin8.8.0 locale: C

...ersion 2.7.0 in a Windows XP context. I am also using the glmm.admb package (created by Dave Fournier, Hans Skaug, and Anders Nielson) to run mixed-effects negative binomial models. To the best of my knowledge and ability, I have searched and studied the R-help, R-sig-mixed models, and ADMB NBMM for R (through Otter Research Ltd) list servs; R help documentation; and the web in general for information pertaining to the use and interpretation of the glmm.admb package. My models are able to run without problems. I would, however, like to be able to state whether each fixed-effect pr...