John Kane <jrkrideau <at> yahoo.ca> writes:
>
> There are probably lots of better aproaches but this seems to work.
> I just combined the lines into one vector
> and assighed a dummy variable to mark the diffferent lines
>
> ibrary(ggplot2)
> mydata <- data.frame(xrange <- c(100, 200, 300, 400, 500, 600,
> 700, 800, 900, 1000),
> yrange = c( 1.1, 1.2, 1.3, 1.4, 1.5, 1.5, 1.7, 1.9, 2.0, 2.4),
> mark = c(rep("a",5), rep("b", 5)))
>
> p <- ggplot(mydata, aes( xrange, yrange, colour= mark))
>
> p <- p + geom_line()
>
> p
Yes, or qplot(xrange,yrange,colour=mark,data="mydata")
This was cross-posted to stack overflow: please don't crosspost.
(I didn't understand the question until just now, it was simpler
than I thought -- I thought the OP wanted *four* lines on the final
plot (not "I have four lines of data").
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