> IMO the role of @ is essential and by removing it you amputate J. > How would you form trains equivalent to > > (i.2 1)<@|: i.2 3 > +---+-----+ > |0 3|0 1 2| > |1 4|3 4 5| > |2 5| | > +---+-----+ By using rank?
<@|: b. 0 _ 1 _ (i.2 1) ([: < |:)"1 _ i.2 3 ┌───┬─────┐ │0 3│0 1 2│ │1 4│3 4 5│ │2 5│ │ └───┴─────┘ -- Met vriendelijke groet, @@i=Arie Groeneveld ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
