Hi Pat, Certainly you can But you need to provide more details, will advise closely In general, first you plot the “frame” without plotting like this
plot(range(data1$x1,data2$x2), range(data1$y1,data2$y2), type=’n’) # means just plotting a frame with xaxis ranges from x1-x2 and y from y1-y2, but no plotting then depends on your data type (i.e. line or scatter or blah blah) then you have specific command for them Give you here an example for reference: # Two scatter plots in the same graph: data1 <- data.frame(x1=rnorm(100,70,7), y1=rnorm(100,35,5)) data2 <- data.frame(x2=rnorm(100,78,8), y2=rnorm(100,40,5)) plot(range(data1$x1,data2$x2), range(data1$y1,data2$y2), type=’n’) points(data1$x1,data1$y1,pch=17, col=’blue’) points(data2$x2,data2$y2,pch=16, col=’red’) Cheers Nguyen Message: 82 Date: Tue, 8 May 2007 16:49:47 -0700 (PDT) From: "Patrick Wang" <[EMAIL PROTECTED]> Subject: [R] draw two plots on a single panel To: [email protected] Message-ID: <[EMAIL PROTECTED]> Content-Type: text/plain;charset=iso-8859-1 Hi, I have 2 dataset, plot(data1) plot(data2), but it comes as two graphs, can I draw both on a single panel so I can compare them? Thanks Pat
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