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Some essentials of data cleaning: hints and tips

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  • Felicity Clemens

    (London School of Hygiene and Tropical Medicine)

Abstract

The cleaning and verification process of many different types of datasets often involves considering similar problems. This presentation will give a very brief simple overview of three useful processes and their associated Stata commands: 1. Finding, counting and removing duplicated data and other multiple entries; 2. Summing individual-level entries to give an overall score per individual - when to treat missing data as 0; 3. Recap of merging data and uses of the merge command The presentation will outline the difficulties that are frequently encountered in these three situations and show how they can be addressed using the common Stata commands of count, rsum, sum and merge/append respectively.

Suggested Citation

  • Felicity Clemens, 2005. "Some essentials of data cleaning: hints and tips," United Kingdom Stata Users' Group Meetings 2005 13, Stata Users Group.
    • Handle: RePEc:boc:usug05:13
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