Thank you for the help! Much appreciated. I'll have to dig a little deeper
to decipher some of these errors then. Some were definitely caused by the
1.1-6 false warnings though, so thats good to know.


On Fri, Jul 18, 2014 at 1:14 PM, Ben Bolker <bbolker@gmail.com> wrote:

> On 14-07-18 10:32 AM, Leithen wrote:
> > Hi Ben,
> > Thank you for this. I hadn't seen it. Does this apply to 1.1-7 as well?
> > --L
>
>   [cc'ing r-sig-mixed-models]
>
>   No, it doesn't; in 1.1-7 we have changed the tests so that it is
> much more likely that reported convergence failures represent a real
> problem rather than a false positive. They *might* still be false
> positives, but for now we'd rather worry people while we figure out
> how to tweak the messages so they're slightly less sensitive (but
> still don't miss things that are real problems).
>
>   Ben Bolker
>
>
>
>
>
>
> >
> >
> > On Thu, Jul 17, 2014 at 7:47 PM, Ben Bolker <bbolker@gmail.com> wrote:
> >
> > On 14-07-17 07:49 PM, Leithen wrote:
> >>>> Hi Ben,
> >>>>
> >>>> I am a post-doc at UC Berkeley (ecology and evolutionary biology)
> >>>> and was hoping I could ask you a quick question. I use lme4 a fair
> >>>> bit for my analyses and I recently upgraded to the latest version
> >>>> of R and lme4. I am now finding that analyses which previously ran
> >>>> without warnings are giving me convergence warnings when they
> >>>> didn't before. E.g., this type of error:
> >>>>
> >>>> Warning message: In checkConv(attr(opt, "derivs"), opt$par, ctrl =
> >>>> control$checkConv,  : Model failed to converge with max|grad| =
> >>>> 0.0119784 (tol = 0.001, component 3)
> >>>>
> >>>> I'm just wondering if you have an idea why? Have you updated lme4
> >>>> so that it now prints out warnings more readily?
> >>>>
> >>>> Thank you for your help. I am at a bit of a loss for ideas why this
> >>>> is happening. Cheers, --Leithen
> >
> >   Are you using version 1.1-6?  Have you looked at
> > https://github.com/lme4/lme4/blob/master/README.md ?
> >
> >   cheers
> >     Ben Bolker
>

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