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 ?
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