st: Advice on ranking observations

["PAULINE KNIGHT" <padknight@hotmail.com>]

I am using stata 5.0, and my manual does not provide the solution to the following problem, and I cannot find it anywhere else. I hope someone will be able to help. I need to estimate this expression urgently

        R i (yij) - Rni (yij)

where Ri (yij) is the ranking of the jth member of group i within group i, and Rni (yij) is the ranking that the jth member of group i would  obtain were it ranked in the population of members other than group i.

  I used the 'egen' command with 'rank(exp)' to obtain Ri (yij), but I cannot identify the correct command to obtain the Rni (yij).

Thanks very much for any help you can give.

Pauline

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