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Ingy döt Net 2023-07-01 11:58:00 -04:00
parent 7387c8f97b
commit cb5bb5e222
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Task/Entropy/Ruby/entropy.rb Normal file
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def entropy(s)
counts = s.chars.tally
leng = s.length.to_f
counts.values.reduce(0) do |entropy, count|
freq = count / leng
entropy - freq * Math.log2(freq)
end
end
p entropy("1223334444")