gistfile1.txt

[{:d=>11, :v=>1, :last_id=>"527bcc423004f951123b7c1d"}, {:d=>9, :v=>1, :last_id=>"524afa4d30040d96248b828d"}, {:d=>5, :v=>1, :last_id=>"52bc9aec300441a506054092"}, {:d=>4, :v=>1, :last_id=>"527bcc453004f951123b7c80"}, {:d=>3, :v=>1, :last_id=>"520a30b33004882ce9feece7"}, {:d=>2, :v=>2, :last_id=>"52bc9aed300441a50605409b"}, {:d=>1, :v=>5, :last_id=>"524afa4e30040d96248b82ae"}, {:d=>0, :v=>15, :last_id=>"52bc9aee300441a506054100"}]
the params
[11, 9, 5, 4, 3, 2, 1, 0]
the result
[0.0,5.5], [6.0, 2.0]