>> To illustrate try to write >> grp +//. values >> b >./;.1 values >> ; b <@/:~;.1 values >> (all very natural for writing reports operations) without cut, key and >> boxing (which were not available in APL)
I look up Roger's An Implementation of J, adverb /. is modelled by 5 lines of J code, that are difficulty for me to understand. Could anyone demonstrated how the write to the first one (+//.) using APL style? regards, bill ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
