On 6/2/05, Mathias Hunskår Furevik <mathias.furevik at gmail.com> wrote: > Hi, > > when I run > > > plot.default(z1, z2, xlab = "x", ylab = "y", main = "xxxx", pch = "+") > > abline(lm(z1 ~ z2)) I think you have the independent and dependent variables switched: abline(lm(z2 ~ z1)) Sarah -- Sarah Goslee http://www.stringpage.com