If y is a list and I have a dyadic verb u, which I want to apply to every 4
items of y I can do
x ( 4 u \) y
and this will apply x u to every 4 items.
But I want to continually update x every iteration. So after doing x u y to the
first 4 items, x becomes the result,
i.e. x =: x u y
How do I do this for all the list?
I tried things like
result =: leftArg ( 4 (leftArg =:) u \ )rightArg
but I can't get the correct syntax (assuming there is a way to do this).
(I hope my explanation made sense.)
Thanks.
----------------------------------------------------------------------
For information about J forums see http://www.jsoftware.com/forums.htm
