[Jprogramming] Binding x and y to an adverb (]})

[Lorenz Köhl]

Hi,

I need a verb to turn a list of numbers between zero and nine
into a table where each item is 10$0 except at the place indexed
by the input numbers, for example:

   v 0 1 2

1 0 0 0 0 0 0 0 0 0

0 1 0 0 0 0 0 0 0 0

0 0 1 0 0 0 0 0 0 0

My approach using ammend leaves me puzzled:


v=:1&(]})&(10$0)

v 1 2 3

1 0 0 0 0 0 0 0 0 0

1 1 0 0 0 0 0 0 0 0

1 1 0 0 0 0 0 0 0 0


Here I have to bind two nouns (1 as x and 10$0 as y) to the verb

(]}) but maybe that doesn't do what I think it does? The rank of v

doesn't seem to matter, it gives the same output, but I know I want

it to use 0-cells of the input list.


I'd be happy to see what the idiomatic way to do this is, and maybe

how to fix my approach.


greetings,

Lorenz