> I have a bunch of lines I want to plot using plotCI() > > What Id like to know is, how can I connect the points with a line and how > can I print multiple lines on the same graph? You might want to have a look at ggplot2, e.g. http://had.co.nz/ggplot2/geom_errorbar.html, for an alternative way to do this. Hadley -- http://had.co.nz/