Of course Chad's answer is best . But I just thought I'd show people how to change the default color order that you get when you plot lines without specifying the color. Ever wonder how it plots blue first, then dark green, then red, then cyan, etc.? Ever want to change the default order so that it plots curves with the color order you want instead of the default color order, and without having to specify the color in every single call to plot()? If so, run the attached demo.