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...e and predictor variables interchanged One way to proceed would be to extract the intercept and slope from lmObj2 and then do the arithmetic to draw the correct line. I'm hoping for a more streamlined method. Is there one? Thanks David -- View this message in context: http://www.nabble.com/reflecting-a-line-tp19422091p19422091.html Sent from the R help mailing list archive at Nabble.com.

I've looked long and hard for this, but maybe I am missing something... There is a nice module that displays histograms reflected in the y axis, i.e. http://addictedtor.free.fr/graphiques/RGraphGallery.php?graph=136 but is it possible to reflect in the x-axis, so to have two datasets, one pointing up and one down rather than left and right? I haven't been able to find a way to plot this way using the guide, or elsewher...