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XFRAC: Stata module to produce tabulation using categories defined by fractions of a cut-off value

Author

Listed:
  • Stephen P. Jenkins

    (London School of Economics)

Programming Language

Stata

Abstract

xfrac provides a specialized tabulation (a 'wrapper' for -tabulate-). Each valid observation is first partitioned by varname into one of a set of 20 mutually-exclusive categories, the boundaries of which are defined by 'hard-wired' fractions of a user-specified cut-off value (in the same units as varname), with fractions ranging from 0.1 through to 3.0. This classification is then tabulated and, optionally, can be retained as a new variable. In effect xfrac provides a discrete representation of the distribution function for varname. Example: let varname be a measure of income and the cut-off be mean income. xfrac shows the proportion of observations with income less than 10% of mean income, between 10% and 20% of mean income, between 20% and 30% of mean income, and so on (20 categories). Cumulative proportions are also shown.

Suggested Citation

  • Stephen P. Jenkins, 1999. "XFRAC: Stata module to produce tabulation using categories defined by fractions of a cut-off value," Statistical Software Components S366006, Boston College Department of Economics.
    • Handle: RePEc:boc:bocode:s366006
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    File URL: http://fmwww.bc.edu/repec/bocode/x/xfrac.ado
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    File URL: http://fmwww.bc.edu/repec/bocode/x/xfrac.hlp
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