[R-sig-ME] Fwd: Model failed to converge in bootMer
pfabuel at gmail.com
Sat Aug 8 12:07:55 CEST 2015
In the following link of Dropbox you can find two archives (script and
data) that cause the problem.
2015-07-21 13:37 GMT+02:00 Ben Bolker <bbolker at gmail.com>:
> Please forward this question to r-sig-mixed-models at r-project.org. Are
> you using the latest CRAN version (1.1-8) of lme4?
> Ben Bolker
> On Tue, Jul 21, 2015 at 3:33 AM, Francisco Fabuel <pfabuel at gmail.com>
> > Mr. Bolker:
> > I'm trying to estimate some quantities derived from a lmer object using
> > bootstrap. When I use the function bootMer, a large proportion of
> > replications seems to fail to converge, but if I program the bootstrap
> > using package boot, everything seems go well.
> > Please, find attached a simple example (R script and data) of the
> > with bootMer in 10 simulations, I've got 7 warnings:
> > Warning messages:
> > 1: In checkConv(attr(opt, "derivs"), opt$par, ctrl = control$checkConv,
> > Model failed to converge with max|grad| = 0.00132463 (tol = 0.001,
> > component 1)
> > Thank you in advance.
> > Francisco Fabuel
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