[R] Setting max. iterations for lmer

Joshua Wiley jwiley.psych at gmail.com
Sun May 29 03:10:50 CEST 2011


Hi Mitch,

Something like:

m <- lmer(Reaction ~ Days + (1|Subject) + (0+Days|Subject), sleepstudy,
  control = list(maxIter = 1))

Hope this helps,

Josh

On Sat, May 28, 2011 at 6:05 PM, Downey, Patrick <PDowney at urban.org> wrote:
> Hello,
>
> I hate to ask a question which is directly addressed in the documentation,
> but can someone please give me an example of how to change the maximum
> number of iterations used by lmer. I'm having a hard time understanding
> this:
>
> control              a list of control parameters. See below for details.
> control
> a named list of control parameters for the estimation algorithm, specifying
> only the ones to be changed from their default values. Hence defaults to an
> empty list.
> Possible control options and their default values are:
> msVerbose:
> a logical value passed as the trace argument to nlminb (see documentation
> on that function). Default is getOption("verbose").
> maxIter:
> a positive integer passed as the maxIter argument to nlminb (see
> documentation on that function). Default is 300.
> maxFN:
> a positive integer specifying the maximum number of evaluations of the
> deviance function allowed during the optimization. Default is 900
>
>
> Thank you in advance,
> Mitch
>
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> and provide commented, minimal, self-contained, reproducible code.
>



-- 
Joshua Wiley
Ph.D. Student, Health Psychology
University of California, Los Angeles
http://www.joshuawiley.com/



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