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SURVCOLLAPSE: Stata module to collapse surveillance data over a chosen time unit and complete the series

Author

Listed:
  • Leonelo Bautista

    (University of Wisconsin-Madison)

Programming Language

Abstract

survcollapse collapses surveillance data in which each observation may represent a single case or multiple cases occurring on the same date (time unit), producing totals over a user-selected coarser time unit (for example, aggregating daily data to weekly or monthly data). It ensures that the resulting time series is complete: observations for time units (e.g., days) that did not exist in the original dataset are automatically created and assigned 0 cases. Only gaps between the minimum and maximum observed value of timevar() are completed. The flag variable created indicates whether a time unit was observed in the original data (created = 0) or was generated by survcollapse and assigned 0 cases in the collapsed data (created = 1).

Suggested Citation

  • Leonelo Bautista, 2025. "SURVCOLLAPSE: Stata module to collapse surveillance data over a chosen time unit and complete the series," Statistical Software Components S459570, Boston College Department of Economics.
    • Handle: RePEc:boc:bocode:s459570
    Note: This module should be installed from within Stata by typing "ssc install survcollapse". 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.
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    File URL: http://fmwww.bc.edu/repec/bocode/s/survcollapse.ado
    File Function: program code
    Download Restriction: no
    File URL: http://fmwww.bc.edu/repec/bocode/s/survcollapse.sthlp
    File Function: help file
    Download Restriction: no
    File URL: http://fmwww.bc.edu/repec/bocode/s/survcollapse_test_data.dta
    File Function: sample data file
    Download Restriction: no
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