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Need a formula or Macro to correspond to unique identifiers

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    Need a formula or Macro to correspond to unique identifiers

    Hi, I have three columns of data... the first is different names of colors (red, blue, green...), the second is the that same data as the first except all duplicates have been deleted, and the third is simply a number that is a unique identifier for each unique entry in the second row (1,2,3...). I need a fourth column to correspond to each unique number for the first row. For instance if the first five entries in the first column were blue, blue, red, green, red then the first 3 entries in the second column would be blue, red, green which would correspond to the numbers 1,2,3 respectively. I need the fourth column to say 1,1,2,3,2... and so on down the list. Thanks
    Last edited by mike12345; 08-14-2011 at 10:36 AM.

  2. #2
    Forum Guru (RIP) Marcol's Avatar
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    Re: Need a formula or Macro to correspond to unique identifiers

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