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Add frequencies to core library.
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@@ -1,11 +0,0 @@
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# Get the number of occurences of elements in a set
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(defn frequencies
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"Get the number of occurences of each value in a indexed structure."
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[ind]
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(def freqs @{})
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(loop
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[x :in ind]
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(def n (get freqs x))
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(put freqs x (if n (+ 1 n) 1)))
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freqs)
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