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WTDTTT: Stata module to estimate parameters of the ordinary and reverse Waiting Time Distribution (WTD) by maximum likelihood

Author

Listed:
  • Katrine Bødkergaard Nielsen

    (Department of Public Health Biostatistics, University of Aarhus)

  • Henrik Stovring

    (Department of Public Health Biostatistics, University of Aarhus)

Programming Language

Stata

Abstract

wtdttt estimates parameters of the ordinary and reverse Waiting Time Distribution (WTD) by maximum likelihood. Covariates can be used to improve precision of predicted prescription durations. Diagnostic plots can be obtained to assess fit of the model.

Suggested Citation

  • Katrine Bødkergaard Nielsen & Henrik Stovring, 2016. "WTDTTT: Stata module to estimate parameters of the ordinary and reverse Waiting Time Distribution (WTD) by maximum likelihood," Statistical Software Components S458265, Boston College Department of Economics, revised 15 Apr 2021.
    • Handle: RePEc:boc:bocode:s458265
    Note: This module should be installed from within Stata by typing "ssc install wtdttt". 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

    Download full text from publisher

    File URL: http://fmwww.bc.edu/repec/bocode/w/wtdttt.ado
    File Function: program code
    Download Restriction: no
    File URL: http://fmwww.bc.edu/repec/bocode/w/wtdttt.sthlp
    File Function: help file
    Download Restriction: no
    File URL: http://fmwww.bc.edu/repec/bocode/r/ranwtdttt.ado
    File Function: program code
    Download Restriction: no
    File URL: http://fmwww.bc.edu/repec/bocode/r/ranwtdttt.sthlp
    File Function: help file
    Download Restriction: no
    File URL: http://fmwww.bc.edu/repec/bocode/w/wtdtttdiag.ado
    File Function: program code
    Download Restriction: no
    File URL: http://fmwww.bc.edu/repec/bocode/w/wtdtttdiag.sthlp
    File Function: help file
    Download Restriction: no
    File URL: http://fmwww.bc.edu/repec/bocode/w/wtdtttpredprob.ado
    File Function: program code
    Download Restriction: no
    File URL: http://fmwww.bc.edu/repec/bocode/w/wtdtttpredprob.sthlp
    File Function: help file
    Download Restriction: no
    File URL: http://fmwww.bc.edu/repec/bocode/w/wtdtttpreddur.ado
    File Function: program code
    Download Restriction: no
    File URL: http://fmwww.bc.edu/repec/bocode/w/wtdtttpreddur.sthlp
    File Function: help file
    Download Restriction: no
    File URL: http://fmwww.bc.edu/repec/bocode/m/mlwtdttt_exp.ado
    File Function: program code
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    File URL: http://fmwww.bc.edu/repec/bocode/m/mlwtdttt_lnorm.ado
    File Function: program code
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    File URL: http://fmwww.bc.edu/repec/bocode/m/mlwtdttt_wei.ado
    File Function: program code
    Download Restriction: no
    File URL: http://fmwww.bc.edu/repec/bocode/r/ranwtdttt_ex.do
    File Function: sample file
    Download Restriction: no
    File URL: http://fmwww.bc.edu/repec/bocode/w/wtdttt_ex.do
    File Function: sample file
    Download Restriction: no
    File URL: http://fmwww.bc.edu/repec/bocode/r/ranwtddat_conttime.dta
    File Function: sample data file
    Download Restriction: no
    File URL: http://fmwww.bc.edu/repec/bocode/r/ranwtddat_discdates.dta
    File Function: sample data file
    Download Restriction: no
    File URL: http://fmwww.bc.edu/repec/bocode/w/wtddat_covar.dta
    File Function: sample data file
    Download Restriction: no
    File URL: http://fmwww.bc.edu/repec/bocode/w/wtddat_dates.dta
    File Function: sample data file
    Download Restriction: no
    File URL: http://fmwww.bc.edu/repec/bocode/l/lastRx_index.dta
    File Function: sample data file
    Download Restriction: no
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