i have no idea what to do
> plot(body.fat, BMI,xlab="Body fat",ylab="BMI",main=“Figure 2.1: BMI vs Body
> fat (n=252)”)
Error: unexpected input in "plot(body.fat, BMI,xlab="Body
fat",ylab="BMI",main=�"
> plot(body.fat, BMI,xlab="Body fat",ylab="BMI")
serious error. This application, or a library it uses, is using an invalid
context and is thereby contributing 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.
>
> Begin forwarded message:
>
> From: Ian Lester <ihles...@mensa.org.au>
> Reply-To: ihles...@mensa.org.au
> Subject: A problem someone should know about
> Date: 30 March 2015 9:52:54 am AEDT
> To: r-help@r-project.org
>
> 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.
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