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16 votes
17 answers
840 views

Square chunk my matrix

Your challenge is to write a function/program that takes a matrix of integers m and a number n as input and: Splits m into n by n chunks Replaces each chunk with the most common value in that chunk (...
emanresu A's user avatar
  • 44.2k
7 votes
4 answers
717 views

Ordinary Least Squares Regression

I am quite surprised that a variant of linear regression has been proposed for a challenge, whereas an estimation via ordinary least squares regression has not, despite the fact the this is arguably ...
Andreï V. Kostyrka's user avatar