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tvladeck/convert_to_annual.rb

Created November 15, 2012 05:36
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converting to annual
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convert_to_annual.rb
irb(main):002:0> def convert_to_annual(ary)
irb(main):003:1> len = ary.length
irb(main):004:1> rem = len % 12
irb(main):005:1> idx = len / 12
irb(main):006:1> ret = idx.times.map { |i| ary[i..(i+11)].reduce(:+) }
irb(main):007:1> ret << ary[(len - rem)..(len)].reduce(:+)
irb(main):008:1> ret
irb(main):009:1> end
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