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Initial data commit

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Ingy döt Net 2023-07-01 11:58:00 -04:00
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Task/Entropy/Oforth/entropy.fth Normal file
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: entropy(s) -- f
| freq sz |
s size dup ifZero: [ return ] asFloat ->sz
ListBuffer initValue(255, 0) ->freq
s apply( #[ dup freq at 1+ freq put ] )
0.0 freq applyIf( #[ 0 <> ], #[ sz / dup ln * - ] ) Ln2 / ;
entropy("1223334444") .