Re: [R] axis function

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Subject: Re: [R] axis function
From: Ben Bolker (ben@zoo.ufl.edu)
Date: Fri 26 May 2000 - 08:02:23 EST 

Message-ID: <Pine.LNX.4.10.10005251741110.1202-100000@bolker.zoo.ufl.edu>

On Thu, 25 May 2000 zivan.karaman@limagrain.com wrote:

> In S-PLUS, the 'axis' function accepts some arguments that don't exist
> in the R counterpart.
>
> The two that I'm interested in right now are 'pos' and 'ticks'.
>
> Any suggestions on how obtain the same result with R?
>

Good news and bad news.
The good news: you can pass any graphics parameter to 'axis', including
"tck" (tick length--if set to zero this eliminates ticks) and "mgp" (which
is a three-place vector that sets the position of axis title, labels, and
lines respectively).

The bad news: only the second element of mgp (label position) seems to
have any effect (R 1.0.0, RH 6.0). This looks like a couple of bugs ...

## examples

par(mfrow=c(2,2))
## ticks on y-axis but not x-axis
plot(c(0,1),c(0,1),axes=FALSE)
axis(side=1,tck=0)
axis(side=2)

## attempt to move x-title in toward plot, doesn't work
plot(c(0,1),c(0,1),axes=FALSE)
axis(side=1,mgp=c(1,1,1),labels=FALSE)
axis(side=2,lwd=2)

## move x-labels away from plot
plot(c(0,1),c(0,1),axes=FALSE)
axis(side=1,mgp=c(1,4,1))
axis(side=2,lwd=2)

## try to move x-axis line, doesn't work
plot(c(0,1),c(0,1),axes=FALSE)
axis(side=1,mgp=c(1,1,4))
axis(side=2,lwd=2)

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