Answers for "finding frequency of elements in array in Ruby"

Ruby

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ruby find frequency in array self.all

balls = [m1, m2, m3, m4]
most_idx = nil

groups = balls.inject({}) do |hsh, ball|
  hsh[ball.color] = [] if hsh[ball.color].nil?
  hsh[ball.color] << ball

  most_idx = ball.color if hsh[most_idx].nil? || hsh[ball.color].size > hsh[most_idx].size 
  hsh
end

groups[most_idx] # => [m1,m2,m4]

Posted by: Guest on July-19-2020

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