Class: Array

Inherits:
Object
  • Object
show all
Defined in:
lib/histo_plot.rb

Instance Method Summary collapse

Instance Method Details

#histo_plot(scale: 1, plot_char: '*', &block) ⇒ Object 



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# File 'lib/histo_plot.rb', line 4

def histo_plot(scale: 1, plot_char: '*', &block)
  block = block_given? ? block : proc {|n| n}
  h = (self.group_by &block)
  max_key = h.keys.map(&:to_s).map(&:length).max
  h.each{|k,v| puts "#{k.to_s.ljust(max_key)}: #{plot_char * (v.count/scale)}"}
  nil
end