[R] A problem someone should know about

Rolf Turner r.turner at auckland.ac.nz
Mon Mar 30 03:59:49 CEST 2015

On 30/03/15 11:52, Ian Lester wrote:
> I’m a novice and this message looks like it shouldn’t be ignored. Someone who knows what they’re doing should probably take a look.
> Thanks
> Ian Lester
>> logfat.lm<-(lm(body.fat~log(BMI)))
>> plot(logfat)
> Error in plot(logfat) : object 'logfat' not found
>> plot(logfat.lm)
> Hit <Return> to see next plot:
> Hit <Return> to see next plot:
> Hit <Return> to see next plot:
> Mar 29 18:10:18 iansimac.gateway rsession[69550] <Error>: Error: this
> application, or a library it uses, has passed an invalid numeric
> value (NaN, or not-a-number) to CoreGraphics API. This is a serious
> error and contributes to an overall degradation of system stability
> and reliability. This notice is a courtesy: please fix this problem.
> It will become a fatal error in an upcoming update.

Please make your examples *reproducible* as the posting guide requests.

I *presume* that your data are the "fat" data from the "UsingR" package,
which you did not mention.

After installing and loading "UsingR" I did

 > logfat.lm <- lm(body.fat~log(BMI),data=fat)
 > plot(logfat.lm)

and got a sequence of plots, with no error thrown. It would appear that 
whatever is causing the error that you saw is peculiar to your system.


Rolf Turner

Rolf Turner
Technical Editor ANZJS
Department of Statistics
University of Auckland
Phone: +64-9-373-7599 ext. 88276
Home phone: +64-9-480-4619

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