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Speaking Stata: Self and others

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  • Nicholas J. Cox

    (Durham University)

Abstract

Data for people in a family, firms in a sector, or members of any kind of group are often analyzed using data for the other members in each group. Examples are the number of older children for each child in a family or the mean investment of other firms in the same year. Many such problems yield to simple logic, spelled out here in terms of useful Stata functions and commands. Operations under by:, or an equivalent by() option, are frequently called for, while the egen command offers a key tool for many calculations. Even when looping is needed, some helpful tricks can be identified. Copyright 2014 by StataCorp LP.

Suggested Citation

  • Nicholas J. Cox, 2014. "Speaking Stata: Self and others," Stata Journal, StataCorp LP, vol. 14(2), pages 432-444, June.
    • Handle: RePEc:tsj:stataj:v:14:y:2014:i:2:p:432-444
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    Keywords

    groups; families; firms; counts; totals; means; by; egen;
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