> +:`-:`% 128!:2 each 1 2 3 Remember that 128!:2 takes strings, not atomic reps, as left arguments.
So this works if all your verbs are primitive or named, but not when they're anonymous and compound. For example: +/`-:`% 128!:2 each 1 2 3 |domain error | +/`-:`% 128!:2 each 1 2 3 However, it is possible to build and execute arbitrary noun phrases from gerunds with a tacit verb. I'll be busy today, so I'll leave that as a little puzzle. -Dan Please excuse typos; composed on a handheld device. On Jan 23, 2013, at 10:56 PM, Thomas Costigliola <[email protected]> wrote: > Yet another way is to use apply, although there will be no implicit cyclic > extension of the gerund... > > +:`-:`% 128!:2 each 1 2 3 > ┌─┬─┬────────┐ > │2│1│0.333333│ > └─┴─┴────────┘ > > > > On Wed, Jan 23, 2013 at 10:36 PM, Dan Bron <[email protected]> wrote: > >> After the verb @ gerund behavior was decommissioned in J5, I wrote a >> utility to emulate it. As a use case for the utility, I implemented an >> adverb which lets you apply successive verbs (a gerund) to a corresponding >> list of nouns. The underlying mechanism is ;. (similar to the /. approach >> Thomas outlined, but a little more flexible). >> >> More details here: http://www.jsoftware.com/jwiki/DanBron/Snippets/DOOG . >> Caveat: I haven't tested this with J7 - in fact, I haven't even run it >> in years. >> >> -Dan >> >> -----Original Message----- >> From: [email protected] [mailto: >> [email protected]] On Behalf Of bob therriault >> Sent: Wednesday, January 23, 2013 5:06 PM >> To: [email protected] >> Subject: Re: [Jprogramming] applying >1 gerunds to a set of items >> >> Thomas, >> >> Funny how you see what you want to see, when you think you have a solution >> :) >> >> How about this: >> >> <"0@|:@(+:`*:`%/.) 3 4 5 >> +-+--+---+ >> |6|16|0.2| >> +-+--+---+ >> >> or if no boxing required: >> >> |:@(+:`*:`%/.) 3 4 5 >> 6 16 0.2 >> >> I agree that it is not quite as clean as it used to be. >> >> Cheers, bob >> >> On 2013-01-23, at 1:29 PM, Thomas Costigliola wrote: >> >>> On Wed, Jan 23, 2013 at 4:05 PM, bob therriault <[email protected] >>> wrote: >>> >>>> Nice Thomas, >>>> >>>> I had not thought of oblique. >>>> >>>> You can still do this, although it is clunkier: >>>> >>>> <@(+:`*:`%/.) 3 4 5 >>>> +---+ >>>> | 6| >>>> | 16| >>>> |0.2| >>>> +---+ >>>> >>> >>> I was hoping to box each row as you attempted below... >>> >>> >>>> <@(+:`*:`%/."0) 3 4 5 >>>> +-+-+--+ >>>> |6|8|10| >>>> +-+-+--+ >>>> >>>> or better, >>>> >>>> +:`*:`%/. each 3 4 5 NB. each is &.> >>>> +-+-+--+ >>>> |6|8|10| >>>> +-+-+--+ >>>> >>>> >>>> >>> ... but these don't work correctly. If you look at the output it >>> doesn't match your first example. +:`*:`%/. applies at rank zero, so >>> each application applies the whole gerund to jus ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
