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Dysperen/rolling_mean.rb Secret

Last active September 22, 2016 18:22
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rolling_mean.rb
module Enumerable
def rolling_mean(n = 3)
raise ArgumentError, "n must be less than array length" if n >= self.size
raise ArgumentError, "n must be a natural number" if n < 0
self.each_cons(n).map { |e| e.mean }
end
end
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