[R] Highlighting different series with colors

[Valentin Bellassen]

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 <vbella at lsce.ipsl.fr> 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
>>
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>>  and provide commented, minimal, self-contained, reproducible code.
>>
>>     
>
>
>