Verb f below is an example of "Subtle J". Is there a "Simple J" way?
I first saw verb f in a note from Linda Alvord. f=: 13 :'x&(+./@E.)&>y' 'bc' f 'a bc def';'ab cde f';'abc d ef' 1 0 1 As you see, f tells which strings on the right contain the left string. Experienced J users know that f operates by first forming the verb x&(+./@E.)&> and then applying that verb to y . They also know "that verb" will be applied to each box in y independently of the others and the separate results assembled into the final answer. Is there a way to do it using mostly trains and rank? A "Simple J" way for less experienced users? You hear the plea of an ex college teacher who dealt with less experienced users! ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm