[ADMB Users] function maximizer failed (couldn't find STD file)??

[Shawn McCracken]

Hello Ben,

First I tried:
>
mm7b=glmmadmb(count~treat+bronum+bromelv+bromhgt+bromleaf+bromh2o+h2opH+(1|tree),data=ecpad,admb.opts=admbControl(shess=FALSE,noinit=FALSE),family="nbinom")

and still got:
Error in glmmadmb(count ~ treat + bronum + bromelv + bromhgt + bromleaf +
 :
  The function maximizer failed (couldn't find STD file)
In addition: Warning message:
running command './glmmadmb -maxfn 500 -maxph 5' had status 1

Went down to v.0.7 and all seems well again. Thank you so much! It made for
a stressful day up to this point.

Thanks again,

Shawn


On Wed, Jan 25, 2012 at 4:34 PM, Ben Bolker <bbolker at gmail.com> wrote:

> On 12-01-25 05:05 PM, Shawn McCracken wrote:
> > Dear glmmADMB users,
> >
> > Yesterday I was running my full & reduced models with several different
> > distribution families and had no problems except for the warning message
> > "Estimated covariance matrix may not be positive definite" followed by a
> > string of numbers for a few of the distribution famlies. But when I ran
> the
> > summary() command on the model everything seemed fine. I decided I would
> > update to the latest version of glmmADMB to see what happens. Ran the
> same
> > models and the warning was gone. Great! I was on Mac OSX 10.6.8, running
> R
> > v.2.14.0 64-bit, and package glmmADMB v.0.6.5 and updated to glmmADMB
> > v.0.7.2.5. I ran the following distributions: poisson, zero-inflated
> > poisson, negative binomial, zero-inflated negative binomial, and negative
> > binomial type 1. Today I come back to continue working on reduced models
> > and I get the following error:
> > Error in glmmadmb(count ~ treat + bromleaf + (1 | tree), data = ecpad,  :
> >   The function maximizer failed (couldn't find STD file)
> > In addition: Warning message:
> > running command './glmmadmb -maxfn 500 -maxph 5 -noinit -shess' had
> status
> > 1
> >
> > I have now gone through restarting everything, downgrading glmmADMB to
> > v.0.7.2.4 then back to v.0.7.2.5, and upgraded R to v.2.14.1 with no
> luck.
> > I looked for glmmADMB version 0.6.5 but couldn't find it. Just some
> > preliminary testing with models that ran fine yesterday it appears
> > that negative binomial (family="nbinom") and negative binomial type 1
> > (family="nbinom1") are the two that now give the above error. It is
> strange
> > that zero-inflated negative binomial works fine. I have tried to follow
> the
> > previous few posts about dealing with this problem but with no luch and
> its
> > a little unclear to me if they were on a Mac or not for some of those
> > remedies.
> >
> > Really loving all the new functionality of glmmADMB so big thanks to the
> > developers. Just bummed its not working for me now, particularly negative
> > binomial type 1.
> >
> > Where can I get the glmmADMB v. 0.6.5 that was working?
>
>   A couple of thoughts:
>
>  * with a little bit of work I can retrieve the relevant version from
> the source code repository, build it, and put it up somewhere.  In the
> meantime you could go to
> http://www.math.mcmaster.ca/~bolker/R/src/contrib/ to download version
> 0.7 (then put it somewhere, setwd() to the appropriate directory, and
> install.packages("glmmADMB_0.7.tar.gz",repos=NULL,type="source"))
>  * a lot of the recent changes in ADMB have to do with tweaks to the TPL
> (model definition) file and to ADMB itself that are _supposed_ to make
> things more stable in general, but *may* tip a marginally stable model
> over the line to unstable -- think of it as a perturbation in a
> generally good direction but with some random component ...
>  * try running with admb.opts=admbControl(shess=FALSE,noinit=FALSE) and
> see if that helps at all ...
>
>  Ben Bolker
>
>
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>



-- 


Shawn F. McCracken
Ph.D. Candidate - Aquatic Resources
Department of Biology
Texas State University
601 University Drive
San Marcos, Texas 78666

smccracken at txstate.edu
http://uweb.txstate.edu/~sm1216/
_________________________________

Executive Director/Research Coordinator
The TADPOLE Organization

smccracken at tadpoleorg.org
www.tadpoleorg.org

"It is horrifying that we have to fight our own government(s) to save the
environment." - Ansel Adams
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