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
--- On Mon, 11/28/11, Abdul Wahid Memon <engrwahidme...@gmail.com> wrote:
> From: Abdul Wahid Memon <engrwahidme...@gmail.com>
> Subject: [R] plotting multiple lines on single graph ggplot2
> To: r-help@r-project.org
> Received: Monday, November 28, 2011, 9:35 AM
> Hello everyone
>
> I have some data of the following type.
>
> 100 200 300 400 500
> 1.1 1.2 1.3 1.4 1.5
> 600 700 800 900 1000
> 1.5 1.7 1.9 2.0 2.4
>
> With plot() and points functions I can plot these 4 lines
> of data. But
> I dont know how to do it with qplot or ggplot functions.
> The scenario
> is something like this: the hundreds should appear on
> x-axis and the
> fractional values of y axis.
>
> Thanks alot.
>
> MEMON Abdul Wahid
>
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> R-help@r-project.org
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>
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