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3:56 AM

Q: APL Dyalog Nested Array Element Transformations

I've been using Dyalog APL for a class assignment and I've run across an issue in transforming each element of a nested array. I have a character array called HOLD which has a variable amount of 7 character long arrays in it. Using a split transformation I can turn it into a nested array of read...

3 hours later…

Pavel

7:15 AM

@Adám How can I reduce a multidimensional list by some function? Like +/ will sum a 1d array, but I'm looking for something to sum all the elements of an array of unknown dimensions.

(Assuming ⎕ML←0, so no ∊)

Adám

@Pavel Will +/⍣≡ do what you want?

Pavel

Probably. I missed the lessons on ⍣ and ≡.

Adám

@Pavel Note that if the function is not scalar, you may need ⊃ in front. E.g. ⊃,/⍣≡ is the same as enlist (or just ,) on simple arrays.

Pavel

7:31 AM

I was looking at this answer and I could tell the author worked at Dyalog without looking at his profile because I didn't recognize him as a golfer and he included a link to TIO.

Adám

@Pavel To be fair, I did teach the audience how to use TIO during the last user meeting.

Pavel

Yeah, I watched that. But that was a while ago.

4 hours later…