Hi, ALL, I thought there should be a solution/algorithm already to this problem and would like to check here first.
The problem: To return all the pairs (one number from each array, one number can only be in one pair) that have the smallest sum of absolute differences from two arrays. For example my @xa=(8765,6000,4765,3000,1530,1500,1465,1234,1000); my @xb=(8675,6000,4567,3100,3000,1545,1515,1485,1324,1005); to return: diff num_1 num_2 0 3000 3000 0 6000 6000 5 1000 1005 15 1500 1515 15 1530 1545 20 1465 1485 -90 8765 8675 90 1234 1324 -198 4765 4567 . 3100 Notice that |1500-1485|=|1500-1515|. Many thanks! Nengbing -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]