Day 1: Historian Hysteria

Megathread guidelines

  • Keep top level comments as only solutions, if you want to say something other than a solution put it in a new post. (replies to comments can be whatever)
  • You can send code in code blocks by using three backticks, the code, and then three backticks or use something such as https://blocks.programming.dev/ if you prefer sending it through a URL

FAQ

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[โ€“] 1 point 2 years ago*

J

NB. file handling from https://www.jsoftware.com/help/primer/files.htm
data =: > 0 ". each cutopen toJ fread '1.data'
result1 =: +/ | -/"1 |: ({~ /:)"1 |: data
NB. Lemmy insists on mangling the ampersand, the & is _just_ an ampersand
result2 =: +/ , ((0&{) * (="0 1)/) |: data
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