Hi Peter, Dotchart plots the points in the order that it receives them - to plot them in order of increasing mol, you need to sort mol first. To make sure you keep the right prof associated to the right mol, I'd use names to connect the two first (this also means you don't need to provide an explicit labels vectors to dotchart)
eg. names(mol) <- prof dotchart(sort(mol)) HTH, Hadley ------------------------------------------------- This mail sent through IMP: http://horde.org/imp/ ______________________________________________ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help