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Speaking Stata: Tables as lists: From rounding to binning

Author

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  • Nicholas J. Cox

    (Durham University)

Abstract

This is a basic review of how to bin variables in Stata, meaning how to divide their range or support into disjoint intervals. I survey rounding functions with emphasis on floor and ceiling functions as tools to get clearly defined intervals of equal width. Using a specific display format is usually a better idea than rounding to multiples of a fraction. Quantile binning is popular in several fields. I give tips and tricks on how to produce such bins and also on how to show their limitations. Experimentation with the display command or Mata is a good way to learn about functions and to test binning rules.

Suggested Citation

  • Nicholas J. Cox, 2018. "Speaking Stata: Tables as lists: From rounding to binning," Stata Journal, StataCorp LP, vol. 18(3), pages 741-754, September.
    • Handle: RePEc:tsj:stataj:y:18:y:2018:i:3:p:741-754
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