> How can I
> increase the information by colouring the dots according to a colour band
> indexed by a variable z?
Plot will not do this for you. You will have to group your data by z variable
(possibly using /. adverb) and plot each group with appropriate color.
Same thing applies if you want to use different marker type or size.
----------------------------------------------------------------------
For information about J forums see http://www.jsoftware.com/forums.htm
