Thanks, Oleg. Just the sort of information I was hoping for. We're a long way from the one-stop shop.
BTW I qualified my statement with "task-oriented". When I talk to people they seem to treat it as a noise-word. Ian On Mon, Feb 15, 2010 at 10:38 AM, Oleg Kobchenko <oleg...@yahoo.com> wrote: > And that's an overstatement. > > http://www.jsoftware.com/jwiki/Phrases/Strings > http://www.jsoftware.com/jwiki/Guides/Strings > http://www.jsoftware.com/jwiki/Guides/Parsing > > > > >> From: Ian Clark <earthspo...@googlemail.com> >> >> But if I carry on writing myself a task-oriented cookbook of >> slice'n'dice for a char table, surely i'll be reinventing the wheel? >> >> Ian >> >> >> On Sun, Feb 14, 2010 at 5:51 AM, Ian Clark wrote: >> > Even nicer. I can see I'll be using this a lot. >> > >> > On Sun, Feb 14, 2010 at 5:34 AM, Roger Hui wrote: >> >> {.@;: t >> >> >> >> >> >> >> >> ----- Original Message ----- >> >> From: Roger Hui >> >> Date: Saturday, February 13, 2010 21:00 >> >> Subject: Re: [Jprogramming] Slicing and dicing a 2D char mx >> >> To: Programming forum >> >> >> >>> How do you do it in APL? Translate it into J. >> >>> >> >>> Alternatively, your table t is a very special table >> >>> and so admits some special phrases. e.g. >> >>> >> >>> {."1 ;: t >> >>> >> >>> >> >>> >> >>> ----- Original Message ----- >> >>> From: Ian Clark >> >>> Date: Saturday, February 13, 2010 20:50 >> >>> Subject: [Jprogramming] Slicing and dicing a 2D char mx >> >>> To: Programming forum >> >>> >> >>> > 1. If I have a M-by-N table with entries like this (you may >> >>> recognise> the example ;)... >> >>> > >> >>> > ... >> >>> > {. curlylfdot >> >>> > {: curlylfco >> >>> > {:: curlylfcoco >> >>> > } curlyrt >> >>> > ... >> >>> > >> >>> > how do I neatly slice off the first 3 columns (say) into a >> >>> boxed list >> >>> > of tally M to serve as a lookup index? >> >>> > Ditto any given field, i.e. set of columns? >> >>> > I'm often doing it, but a different way each time, and the >> >>> > methods I >> >>> > use are cumbersome. >> >>> > >> >>> > 2. Is there already a slice'n'dice cookbook on the wiki, to >> >>> give quick >> >>> > answers to questions like this? >> >> ---------------------------------------------------------------------- >> >> 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 > ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
