[R] Different y-axes

[Prof Brian D Ripley]

On Tue, 18 Jun 2002, Helmut [iso-8859-1] Schütz wrote:

> What's wrong?

You tell us: we don't know what you are seeing ....

> I tried today's examples and just got only both labels printed one over
> the other.
>
> 1. Brian Ripley
> x <- 1:10
> y <- rnorm(10)
> z <- runif(10, 1000, 10000)
> par(mar=c(5,4,4,4) + 0.1)  # Leave space for z axis
> plot(x, y)
> par(new=T)
> plot(x, z, type="l", axes=F, bty="n", xlab="", ylab="")
> axis(4, at=pretty(range(z)))
> mtext(z, 4, 3)
        ^
mtext("z", 4, 3) was a copying error from me, but all the rest works.


> 2. Don MacQueen
> x <- 1:5
> y1 <- 1:5
> y2 <- 25:21
> plot(x,y1)
> par(new=T)
> plot(x,y2,yaxt='n',col='blue')
> axis(4,y2)

That does plot the box, x axis and x label twice, which matters on some
devices, e.g. a plotter.

-- 
Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272860 (secr)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595

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