11 lines
212 B
Text
11 lines
212 B
Text
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def 'str entropy' [] {
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split chars | do {|len|
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(uniq -c).count
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| each { ($in | math log 2) * $in }
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| math sum
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| ($len | math log 2) - $in / $len
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} ($in | length)
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}
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'1223334444' | str entropy
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