https://code.jsoftware.com/wiki/Essays/Progressive_Index-Of
A good starting point. You can use it directly, given that x -. y is the same as x #~ -. x e. y, and x e. y is (#y) ~: y i. x.
On Mon, 5 Sep 2022, Richard Donovan wrote:
I need a verb similar to dyadic -. but which only removes items which are one for one specified by y. I want verb t such that... 'elect' t 'e' lect 'elected' t 'ee' lcted 'elected' t 'eet' lced 'elected' t 'dec' lete That is, the right argument is taken item by item and then removes the first matching element remaining from the left argument. Any help in creating this dyad is most welcome. Thanks ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
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