I'm guessing you're seeking an example of a dyadic fork for your writeup at
http://www.jsoftware.com/jwiki/JohnRandall/ReadingJ .
If that's the case, then yesterday's correlation function might be a
suitable example:
corr =: (+/@:* % *&(+/)&.:*:)&(- +/%#)
For one thing, it is a non-trivial example of a true, natural dyadic fork.
For another, it continues your theme of +/%# from monadic fork, and
builds on top of it.
Last, it has some interesting features, and could serve as a good diagram
of various glue conjunctions: how they work, and under what circumstances
to use them (and what problems you could encounter if you used the wrong
one).
However, those same interesting features might make the example too complex
for your needs. But it's an idea.
-Dan
----------------------------------------------------------------------
For information about J forums see http://www.jsoftware.com/forums.htm
