Class: Spark::Command::Histogram

Inherits:
Object
  • Object
show all
Includes:
Helper::Statistic
Defined in:
lib/spark/command/statistic.rb

Overview

Histogram

Instance Method Summary collapse

Methods included from Helper::Statistic

#bisect_right, #compute_fraction, #determine_bounds, #upper_binomial_bound, #upper_poisson_bound

Instance Method Details

#lazy_run(iterator) ⇒ Object 



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# File 'lib/spark/command/statistic.rb', line 75

def lazy_run(iterator, *)
  run(iterator)
end

#run(iterator) ⇒ Object 



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# File 'lib/spark/command/statistic.rb', line 58

def run(iterator, *)
  counters = Array.new(counter_size) { 0 }
  iterator.each do |item|
    if item.nil? || (item.is_a?(Float) && !item.finite?) || item > max || item < min
      next
    end

    x = bucket_function.call(item)
    if x.nil?
      # next
    else
      counters[x] += 1
    end
  end
  [counters]
end