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An R Graph with Two Y-Axes

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An R Graph with Two Y-Axes

· Big Data Zone ·
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I’ve been asked how to do this sev­eral times, so I thought it might help to put an exam­ple online.

x <- 1:5
y1 <- rnorm(5)
y2 <- rnorm(5,20)
plot(x, y2,,type="l",col="blue",xaxt="n",yaxt="n",xlab="",ylab="")


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