[R] Graphics question

[Bowden, J.M.]

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?