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BOXTID: Stata module to fit Box-Tidwell and exponential regression models

Author

Listed:
  • Patrick Royston

    (MRC Clinical Trials Unit, UK)

Programming Language

Stata

Abstract

boxtid is a generalization of fracpoly in which continuous rather than fractional powers of the continuous covariates are estimated. boxtid fits Box & Tidwell's (Technometrics, 1962) power transformation model to yvar with predictors in xvarlist. boxtid also fits exponential models for predictors specified in expon(). This is an updated version of Royston & Ambler, Stata Tech. Bull. 49, 50 (1999), and contains support routines that handle factor variables for prediction and plotting.

Suggested Citation

  • Patrick Royston, 2013. "BOXTID: Stata module to fit Box-Tidwell and exponential regression models," Statistical Software Components S457578, Boston College Department of Economics.
    • Handle: RePEc:boc:bocode:s457578
    Note: This module should be installed from within Stata by typing "ssc install boxtid". 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/b/boxtid.ado
    File Function: program code
    Download Restriction: no
    File URL: http://fmwww.bc.edu/repec/bocode/b/boxtid.sthlp
    File Function: help file
    Download Restriction: no
    File URL: http://fmwww.bc.edu/repec/bocode/x/xfrac_154.ado
    File Function: program code
    Download Restriction: no
    File URL: http://fmwww.bc.edu/repec/bocode/x/xfrac_adj.ado
    File Function: program code
    Download Restriction: no
    File URL: http://fmwww.bc.edu/repec/bocode/x/xfrac_chk.ado
    File Function: program code
    Download Restriction: no
    File URL: http://fmwww.bc.edu/repec/bocode/x/xfrac_dis.ado
    File Function: program code
    Download Restriction: no
    File URL: http://fmwww.bc.edu/repec/bocode/x/xfracplot.ado
    File Function: program code
    Download Restriction: no
    File URL: http://fmwww.bc.edu/repec/bocode/x/xfracpred.ado
    File Function: program code
    Download Restriction: no
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