Thanks Jim, Labels for the following are at 0,2,4,6,8,10,12, not data, good. and omitted where lack of room.
h=c(1.2,2.4,3.1,4.7,5.3,6.2,7.6,8.8,9.7) v=c(9,8,7,6,5,4,3,2,1) plot(h,v,xaxt='n',xlim=c(-1,13)) 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) Suppose I really did want more control, like where and what exactly -- View this message in context: http://r.789695.n4.nabble.com/Label-axis-tick-marks-with-a-simple-function-of-axis-value-tp4687917p4688456.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.