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

Patrick Royston ()
Additional contact information
Patrick Royston: MRC Clinical Trials Unit, UK

Statistical Software Components from Boston College Department of Economics

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.

Language: Stata
Requires: Stata version 11
Keywords: Box-Tidwell; exponential regression; clogit; glm; logistic; logit; poisson; probit; regress; stcox; streg (search for similar items in EconPapers)
Date: 2013-01-02
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.
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Downloads: (external link)
http://fmwww.bc.edu/repec/bocode/b/boxtid.ado program code (text/plain)
http://fmwww.bc.edu/repec/bocode/b/boxtid.sthlp help file (text/plain)
http://fmwww.bc.edu/repec/bocode/x/xfrac_154.ado program code (text/plain)
http://fmwww.bc.edu/repec/bocode/x/xfrac_adj.ado program code (text/plain)
http://fmwww.bc.edu/repec/bocode/x/xfracFile-URL:h ... pec/bocode/_/chk.ado program code (text/plain)
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http://fmwww.bc.edu/repec/bocode/x/xfrac_dis.ado program code (text/plain)
http://fmwww.bc.edu/repec/bocode/x/xfracplot.ado program code (text/plain)
http://fmwww.bc.edu/repec/bocode/x/xfracpred.ado program code (text/plain)

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