I took the liberty of swiping: https://code.jsoftware.com/wiki/Guides/Conjunctions .
On Thu, Jan 30, 2020 at 11:07 PM Henry Rich <[email protected]> wrote: > Start with > > x u c v y > > where c is an explicit definition. > > The first execution is (u c v). This has available the text of c, and > the values of u and v. > > If the text of c does not refer to x or y, it is simply executed on the > given u/v and can produce any part of speech. > > But if the text of c refers to x/y, what is to be done? These symbols > have no meaning. To make sense of the situation the interpreter assumes > that (u c v) creates something that will take its x/y arguments from the > rest of the sentence. > > In J, this result of (u c v) is required to be a verb. Thus its > arguments x/y must be nouns and it must produce a noun result. That is > what you are seeing. > > Henry Rich > > > > > On 1/30/2020 9:01 PM, Raoul Schorer wrote: > > Hi, > > > > I wrote a dyadic conjunction, that I call as: > > > > x u conj v y, where x u v y are all nouns > > > > However, I get the error "noun result was required". My conjunction > > actually yields a "suspended function" (thunk) in the form of a string > > wrapped in the "_ verb, as in ('recursive_function')"_ > > I have two questions regarding that: > > > > > > 1. In JfC, it is stated that the result of a conjunction may be > another > > conjunction, and that conjunctions may return any part-of-speech. > Can you > > give me pointers on why this may fail as above? > > 2. If as I suspect, it is difficult to provide a general explanation, > > can you point me towards ways of debugging such an issue, where I > just get > > an error from a function that yields a string to be interpreted > (making > > 'dissect' apparently useless)? > > > > > > Thanks! > > Raoul > > ---------------------------------------------------------------------- > > For information about J forums see http://www.jsoftware.com/forums.htm > > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm > -- Devon McCormick, CFA Quantitative Consultant ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
