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