[R] Graphics question

[Prof Brian Ripley]

xaxp=c(1,2,1) will do so, and look also at par(lab=).

On Thu, 2 Mar 2006, Bowden, J.M. wrote:

>
> Hi
>
> I am trying to plot two points (with confidence intervals) on a graph to
> illustrate the value of a particular quantity after 1 and 2 iterations
> respectively.
>
>
> I'm doing this by
>
> plot(cycle,alpha[2,],main="",ylim=c(-8,-3),cex=2,col="red",pch=19,ylab=e
> xpression(alpha),xlab="cycle")
>
> Etc..
>
> Where
>
>
>> cycle
> [1] 1 2
>> alpha
>          [,1]      [,2]
> [1,] -6.227266 -5.762146
> [2,] -5.200972 -5.010401
> [3,] -4.174677 -4.258655
>
>
> When I plot this I get the x-axis scale reading 1.0,1.1,1.2,...,2.0
>
> I want to get it to read simply                 1                2
>
>
> Is there an easy way to do this?
>
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-- 
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 272866 (PA)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595