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mrc/histogram.rb

Created May 7, 2011 22:39
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Histogram (tweeted by mfeathers)
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histogram.rb
# module is awesome!
module Enumerable;
def histogram;
groups = group_by {|i| i};
(0..max).map {|bin| (groups[bin] || []).count}
end
end
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mrc commented May 7, 2011

Ruby "module" extends all Enumerable class objects with a histogram function. Gosh!

> [3, 5, 5, 6, 6, 6, 7].histogram
 => [0, 0, 0, 1, 0, 2, 3, 1]

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mrc commented May 7, 2011

http://twitter.com/#!/mfeathers/status/64821457309536257

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