9 lines
193 B
Nim
9 lines
193 B
Nim
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import tables, math
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proc entropy(s: string): float =
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var t = initCountTable[char]()
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for c in s: t.inc(c)
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for x in t.values: result -= x/s.len * log2(x/s.len)
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echo entropy("1223334444")
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