[R] Scatter plots using pairs()

[David Winsemius]

On Feb 11, 2014, at 12:54 PM, Nestor Arguea wrote:

> Command pairs() does not show the correlation coefficient on the upper
> diagonal of a set of scatter plots.  The command produces an error in
> Windows 7, but it works fine in OS X Mavericks with the same R version
> 3.0.2.  Platform, R version and example under Windows 7 provided
> below.
> $platform
> [1] "i386-w64-mingw32"
> ...
> $version.string
> [1] "R version 3.0.2 (2013-09-25)"
> 
> Example:
> 
>> set.seed(12345)
>> x <- rnorm(10)
>> y <- log(c(2:11))
>> z <- data.frame(x,y)
>> cor(z)
>           x          y
> x  1.0000000 -0.4867929
> y -0.4867929  1.0000000
>> pairs(z)
>> pairs(z,upper.panel=panel.cor)
> Error in pairs.default(z, upper.panel = panel.cor) :
>  object 'panel.cor' not found

I suspect you copied more of the example on the help page (where panel.cor is defined) to the Mac than you did to your Windoze device.


> 
> Thanks,
> 
> Nestor
> -- 
> Nestor Arguea
> Chair, Marketing and Economics
> Director of International Business Programs
> University of West Florida


David Winsemius
Alameda, CA, USA