plotting multiple lines on single graph ggplot2
--- On Mon, 11/28/11, Abdul Wahid Memon <engrwahidmemon at gmail.com> wrote:
From: Abdul Wahid Memon <engrwahidmemon at gmail.com> Subject: Re: [R] plotting multiple lines on single graph ggplot2 To: "Ben Bolker" <bbolker at gmail.com> Cc: r-help at stat.math.ethz.ch Received: Monday, November 28, 2011, 11:56 AM Its very much simple. Simply, if we do like the following x<-c(100,200,300,400,500) y<-c(1.1, 1.2, 1.3, 1.4, 1.5) a<-c(600, 700, 800, 900, 1000) b<-(1.5, 1.7, 1.9, 2.1, 2.3) plot(x,y) points(a,b) As you can see the call to points() function will superimpose a new curve (with some new points on x-axis) on the existing plot. This is what I want to achieve with qplot or ggplot functions
Have you run that code? Unless you specify the xllm() values it does not work. As Ben Bolker and I point out the modified data.frame I supplied does work either with ggplot() or qplot()
Regards On Mon, Nov 28, 2011 at 5:31 PM, Ben Bolker <bbolker at gmail.com> wrote:
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").
Same here for a while until I suddenly realised the x range did not make sense.