I am having a problem getting two sets of data plotted on the same graph and have trawled the www for info on how to solve it. The closest I have found is this TeX.SX post.
However, that is a specific solution to a specific question.
My question is, therefore, "can anyone recommend a good reference on how to get PS tricks to do what you want?". I have bought a copy of "PS Tricks" by Herbert Voß; this gives a lot (!) of examples of what can be achieved and the code to achieve it - and it gives some (but not much) explanation on how the parameters are chosen. I have also found (various copies of) "
ps-plot.pdf" which gives lists of what the parameters are and what they are intended to do - but its examples are not particularly clear/useful.
I need/want something which works the other way to Voß's book; i.e. it gives good, clear explanations of the parameters and options, and then gives examples on how changing the parameters affects the output (rather than just moving on to the next example).