There's a question I'm tracking on Stack Overflow that I'm trying to solve:
https://stackoverflow.com/questions/49288689/how-to-amend-data-in-a-box-j-pr ogramming Given a multi-level box: a =: 1 2 3 ; <4 ; < 5 6; <7 8 How to you amend something given an address multiple levels into the box, e.g. the <5 6 part? I've tried some combination of S: and {:: and } however I can't seem to crack it. I might have expected this to work: (<123) (1;1;0)} a However, in this example, the (1;1;0) replaces item 1 and 0, treating the 1;1;0 as the list of elements to amend, as opposed to the array index to be amended, as is the case with (1;1;0) {:: a Does this mean that J needs a new amend operator, something akin to: (<123) (1;1;0) }:: a ? ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
