Entropy/Narcissist: Difference between revisions
→{{header|jq}}: def sum():
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Line 613:
'''Works with jq, the C implementation of jq'''
'''Works with gojq, the Go implementation of jq'''
'''Works with jaq, the Rust implementation of jq'''
The program assumes it will be presented to itself using
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jq -sR -f entropy-narcissist.jq < entropy-narcissist.jq
</pre>
If your jq supports `keys_unsorted`, feel free to use it instead of `keys`.
<syntaxhighlight lang="jq">
def chars: explode[] | [.] | implode;
def bow(stream):
reduce stream as $word ({}; .[($word|tostring)] += 1);
def sum(s): reduce s as $x (0; .+$x);
length as $l
| bow(chars)
|
| ($l|log2) - ./$l
</syntaxhighlight>
{{output}}
<pre>
{{output}}
<pre>
4.796499915496963
</pre>
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