The language allows it, with u&.>/@(<"_1@[ , <@])
so all that would be needed is support for that form, right? The real problem is how to get an interpreter change into the released path. If Marshall can't do that, what hope is there for someone like me? Henry Rich ---- Marshall Lochbaum <[email protected]> wrote: > Short answer: there is no efficient way (and I find this to be a huge > problem). > > The most recent thread on this topic is here: > http://jsoftware.com/pipermail/programming/2015-February/041005.html > > Marshall > > On Tue, Jun 23, 2015 at 01:53:36AM +0000, Marshall Bockrath-Vandegrift wrote: > > Hi all, > > > > I'm still in the process of learning J, and trying to adapt ideas from > > other languages. In many (other?) functional programming languages it is > > possible to reduce over a collection starting with a provided initial value > > which does not belong to the reduced collection. To attempt to put this in > > J terms, such an operation would allow the initial value and result of each > > reduction step to have a different shape than that of the the items of the > > value being reduced. As far as I can tell, the standard `/` adverb provides > > no such facility. Is there a J idiom for this? > > > > Thanks, > > > > -Marshall > > ---------------------------------------------------------------------- > > For information about J forums see http://www.jsoftware.com/forums.htm > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
