mirror of
https://github.com/red-data-tools/YouPlot.git
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25 lines
566 B
Ruby
25 lines
566 B
Ruby
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# frozen_string_literal: true
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module YouPlot
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# plotting functions.
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module Backends
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module Processing
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module_function
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def count_values(arr)
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# tally was added in Ruby 2.7
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if Enumerable.method_defined? :tally
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arr.tally
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else
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# https://github.com/marcandre/backports
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arr.each_with_object(Hash.new(0)) { |item, res| res[item] += 1 }
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.tap { |h| h.default = nil }
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end
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.sort { |a, b| a[1] <=> b[1] }
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.reverse
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.transpose
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end
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end
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end
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end
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