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class extensions for ruby
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class extensions for ruby

  • dxk-array_ext: extensions for Array
    • .cdf - cumulative distribution function (cumulative sum + normalization)
      • args : optional scaler
    • .normalize - normalization
      • args: optional scaler
    • .pdf - probability density function (divide each by sum of array)
      • args: optional scaler
    • .wsample - weighted sample
      • args: weights, number to sample
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