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Add rate function to support rate collections

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Lee Spector 2023-09-03 20:48:51 -04:00
parent 1facb741e6
commit fad10a85b5
1 changed files with 9 additions and 0 deletions
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9
src/propeller/utils.cljc
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@ -128,3 +128,12 @@ multicore processor utilization, and 4) takes only one coll so far."
"Returns n perturbed with std dev sd." "Returns n perturbed with std dev sd."
[sd n] [sd n]
(+ n (* sd (gaussian-noise-factor)))) (+ n (* sd (gaussian-noise-factor))))
(defn rate
"If given a number, returns it. If given a collection, returns a member of the collection.
Intended for allowing arguments to genetic operators, such as mutation rates, to take
collections in addition to single values"
[thing-or-collection]
(if (coll? thing-or-collection)
(rand-nth thing-or-collection)
thing-or-collection))