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IFWINS: Stata module to subset a dataset by 'if exp' before subsetting by 'in range'


  • Dan Blanchette

    () (The Carolina Population Center, UNC-CH)


ifwins is a prefix command that runs most any Stata command that does not modify the dataset in memory (e.g. generate, replace, etc.). ifwins will have 'if' subset the dataset before 'in' subsets the dataset. This is the opposite of what happens when both 'if' and 'in' are used in the same Stata command. If you want to run a Stata command on a certain number of observations when a certain condition exists, use ifwins as a prefix to the desired Stata command

Suggested Citation

  • Dan Blanchette, 2009. "IFWINS: Stata module to subset a dataset by 'if exp' before subsetting by 'in range'," Statistical Software Components S457017, Boston College Department of Economics, revised 26 Feb 2011.
  • Handle: RePEc:boc:bocode:s457017 Note: This module should be installed from within Stata by typing "ssc install ifwins". Windows users should not attempt to download these files with a web browser.

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    data management; qualifiers; if; in;


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