>>>>> "Valentin" == Valentin Bellassen <[EMAIL PROTECTED]> writes:
> 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
> $type. Would someone know how to do that? Is it possible to
> then generate a legend automatically?
If type is a factor, you can use it as.numeric:
plot(x ~ y, data, col=as.numeric(type))
legend(..., col=as.numeric(data$type))
Mike
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