A similar technique was used to find resulting shape of reshape (fixed at 1-cells). BTW, is it correct?
$(3 4,:5 6)$i.2 3 NB. shape is (}:$x) , (>./^:([EMAIL PROTECTED])x) , }.$y 2 5 6 3 Note, rf depends on frame rank, whereas it should depend on cell rank, i.e. for any rank argument return array of at most given rank. I think this is a good universal adverb: rcr=: /(@])(^:((0>.-)~ [EMAIL PROTECTED])) NB. Reduce to Cell Rank 2 , rcr 3 2 + rcr 3 3 3 2 , rcr i.3 2 + rcr i.3 0 1 2 0 1 2 2 , rcr i.3 4 2 + rcr i.3 4 0 1 2 3 0 1 2 3 4 5 6 7 4 5 6 7 8 9 10 11 8 9 10 11 2 , rcr i.2 3 4 2 + rcr i.2 3 4 0 1 2 3 12 14 16 18 4 5 6 7 20 22 24 26 8 9 10 11 28 30 32 34 12 13 14 15 16 17 18 19 20 21 22 23 2 , rcr i.2 2 3 4 2 + rcr i.2 2 3 4 0 1 2 3 72 76 80 84 4 5 6 7 88 92 96 100 8 9 10 11 104 108 112 116 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 --- Roger Hui <[EMAIL PROTECTED]> wrote: > rf=: ,/@]^:(<:@[) > > $ 4 rf i.2 3 5 7 11 13 > 210 11 13 > > Obvious modifications for other interpretations > of the left argument. > > > > ----- Original Message ----- > From: Oleg Kobchenko <[EMAIL PROTECTED]> > Date: Monday, April 2, 2007 2:14 pm > Subject: [Jprogramming] Ravel frame > > > How to ravel frame of a given cell rank > > without boxing? > > > > Here's how it's done with boxing > > > > ,&.:(<"1) 4 NB. ravel N-1 frames (leave 1-cells) > > 4 > > ,&.:(<"1) i. 4 > > 0 1 2 3 > > ,&.:(<"1) i.3 4 > > 0 1 2 3 > > 4 5 6 7 > > 8 9 10 11 > > ,&.:(<"1) i.2 3 4 > > 0 1 2 3 > > 4 5 6 7 > > 8 9 10 11 > > 12 13 14 15 > > 16 17 18 19 > > 20 21 22 23 > > ,&.:(<"1) i.2 2 3 4 > > 0 1 2 3 > > 4 5 6 7 > > 8 9 10 11 > > 12 13 14 15 > > 16 17 18 19 > > 20 21 22 23 > > 24 25 26 27 > > 28 29 30 31 > > 32 33 34 35 > > 36 37 38 39 > > 40 41 42 43 > > 44 45 46 47 > > > > $,&.:(<"2) i.2 2 2 2 3 4 NB. ravel N-2 frame (2-cell) > > 16 3 4 > > $,&.:(<"2) i.2 2 2 2 2 2 3 4 > > 64 3 4 > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm > ____________________________________________________________________________________ Get your own web address. Have a HUGE year through Yahoo! Small Business. http://smallbusiness.yahoo.com/domains/?p=BESTDEAL ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
