Created
January 28, 2014 17:58
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| CSV.open('/tmp/sub.csv').each_with_object(Hash.new(0)) { |x,hash| hash[x[1]] += 1 } |
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1.9.3p194 :003 > require 'csv'
=> true
1.9.3p194 :004 > CSV.open('/tmp/sub.csv').each_with_object(Hash.new(0)) { |x,hash| hash[x[1]] += 1 }
=> {"1090"=>14447, "0"=>12010, "7002"=>80, "4020"=>4831, "1040"=>65, "1010"=>66, "7010"=>2, "1050"=>2}