Thanks, it works fine except that 7 colors are repeated twice (so that
one color corresponds to two types). I tried the following but it makes
things worse: the legend disappears and I get only 4 different colors:
pan<-function(x,y) {
panel.superpose(x,y,subscripts=coef$country,groups=coef$country,
col=1:14)}
xyplot(coef$a~coef$b,group=coef$country,auto.key=T,
panel="pan",
xlim=c(-b_max,b_max),ylim=c(-a_max,a_max),xlab="intercept",ylab="slope")
Any idea?
In any case, thanks for the previous answer.
Valentin
Henrique Dallazuanna a écrit :
> One option is use lattice:
>
> require(lattice)
> xyplot(x~y, data=your.data, group=type, auto.key=T)
>
> On 25/02/2008, Valentin Bellassen <[EMAIL PROTECTED]> wrote:
>
>> Hello,
>>
>> I have a data frame with 3 vectors $x, $y, and $type. I would like to
>> plot $x~$y and having different colors for the corresponding points, one
>> for each level of $type. Would someone know how to do that? Is it
>> possible to then generate a legend automatically?
>>
>> Valentin
>>
>> ______________________________________________
>> R-help@r-project.org mailing list
>> https://stat.ethz.ch/mailman/listinfo/r-help
>> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
>> and provide commented, minimal, self-contained, reproducible code.
>>
>>
>
>
>
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