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_GRPOS: Stata module to identify observations with at least n positive values

Author

Listed:
  • Fred Wolfe

Programming Language

Stata

Abstract

For egen newvar = rpos(varlist), newvar is 1 if any of the values in varlist are not missing and not 0, else 0. The default number of positive values to be found is 1, but this can be set with Minpos(). The greatest value to be considered to be missing is 0, but may be set (e.g. -1, 2, etc) by Lowlim(). This program was written for the specific case when respondents in surveys answer some, but not all, of a series of questions, and it is desired to make inferences based on some of the answers. For example, If the respondent does not answer the question: Have you had cancer, but does answer 'What year did this occur' or other questions, then it is reasonable to assume 'have you had cancer' is also true.

Suggested Citation

  • Fred Wolfe, 1999. "_GRPOS: Stata module to identify observations with at least n positive values," Statistical Software Components S396201, Boston College Department of Economics.
    • Handle: RePEc:boc:bocode:s396201
    Note: This module may be installed from within Stata by typing "ssc install _grpos". The module is made available under terms of the GPL v3 (https://www.gnu.org/licenses/gpl-3.0.txt). Windows users should not attempt to download these files with a web browser.
    as

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    File URL: http://fmwww.bc.edu/repec/bocode/_/_grpos.ado
    File Function: program code
    Download Restriction: no
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    More about this item

    Keywords

    data handling; Stata;

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