[R-sig-ME] error from clmm

[David Duffy]

On Sun, 20 May 2012, Malcolm Fairbrother wrote:

> Error in if (maxGrad < rho$ctrl$gradTol) { :
>  missing value where TRUE/FALSE needed
> In addition: Warning message:
> In sqrt(phi2) : NaNs produced
>
> Can anyone help me to understand why this may be happening, and/or 
> whether there's anything obvious I should be doing different? With some 
> seemingly small/arbitrary specification changes--or when taking (some) 
> random subsets of my dataset--I don't get this message. But I'd like to 
> find a way of reducing the frequency with which I do get it.

If you google "Error in if (maxGrad < rho$ctrl$gradTol)", you will find an 
email to the list from the package author in Oct 2011.


-- 
| David Duffy (MBBS PhD)                                         ,-_|\
| email: davidD at qimr.edu.au  ph: INT+61+7+3362-0217 fax: -0101  /     *
| Epidemiology Unit, Queensland Institute of Medical Research   \_,-._/
| 300 Herston Rd, Brisbane, Queensland 4029, Australia  GPG 4D0B994A v