[R] Help needed with plot axis labeling

[Sarah Goslee]

Thomas,

You need to specify both the labels and the desired location:

plot(1:10, xaxt = "n")
axis(1, xaxp=c(2, 9, 7))
axis(4, labels=c("A", "B", "C", "D", "E"), at=seq(2, 10, by=2))

You want the labels at 2,4,6,8,10 so you need to specify that,
not 1:5.

Sarah

On Thu, Mar 24, 2011 at 9:55 AM, Thomas Adams <Thomas.Adams at noaa.gov> wrote:
>  I have looked at many examples and tried many different combinations of
> doing this, but with no luck. I have something like this:
>
> plot(1:10, xaxt = "n")
> axis(1, xaxp=c(2, 9, 7))
> axis(4)
>
> but, what I need is to have different labels for axis-4 than those for
> axis-2 (the vertical axes) — that is, rather than 2,4,6,8,10 for both the
> left and right vertical axes, I need A,B,C,D,E on the right — but at the
> same tick locations as those on the left. I have tried using at=1:5,
> labels=c(…), but either nothing happens or I overwrite axis-4 at different
> tick locations; in any case, not what I need. How can I do this?
>
> Regards,
> Tom
>
> --

-- 
Sarah Goslee
http://www.functionaldiversity.org