On 04/09/2014 01:12 PM, Hurr wrote: > > This still puts tick marks at data points: > h=c(1,2,3,4,5,6,7,8,9) > v=c(9,8,7,6,5,4,3,2,1) > plot(h,v,xaxt='n') > x<-c(1.6,2.6,6.6,9.6,12.9) > axis_labels<-1/pretty(x) > axis(1,at=pretty(x),labels=axis_labels) > How do I get the axis to approx 13 ? > > plot(x,xaxt="n",xlim=c(1,13)) Jim