well, that was easy enough... thank you for the prompt response.
dani

On Tue, Feb 8, 2011 at 4:14 PM, David Duffy <davidD@qimr.edu.au> wrote:

> Before anyone else says it -- upgrade your version of R and try again.
>
> Cheers, David Duffy.
> --
> | David Duffy (MBBS PhD)                                         ,-_|\
> | email: davidD@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
>

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