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12 lines
283 B
Plaintext
12 lines
283 B
Plaintext
# 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 sequence."
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[s]
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(let [freqs @{}
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fop (fn [x]
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(let [n (get freqs x)]
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(put freqs x (if n (+ 1 n) 1))))
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_ (domap fop s)]
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freqs))
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