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Re: [Bug-apl] The Dyalog ⌸ operator
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From: |
Kacper Gutowski |
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Subject: |
Re: [Bug-apl] The Dyalog ⌸ operator |
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Date: |
Wed, 27 Apr 2016 05:28:08 +0200 |
On Wed, Apr 27, 2016 at 5:02 AM, Elias Mårtenson wrote:
> So, I wanted to simply take a string of characters, and create a list of
> each character and the number of occurrences of each character in that
> string.
Indeed it could be written in Dyalog very succinctly as
⊣,∘≢⌸ but I would write it portably with outer product:
{v,⍪+⌿⍵∘.≡v←∪⍵}"abcfoobat"
-k