XRIML: Stata module to calculate reference intervals via maximum likelihood

Eileen Wright () and Patrick Royston ()
Additional contact information
Eileen Wright: University of Strathclyde, UK
Patrick Royston: MRC Clinical Trials Unit, UK

Statistical Software Components from Boston College Department of Economics

Abstract: xriml calculates cross-sectional reference intervals for yvar, which is assumed to follow one of 6 possible distributions. The parameters are estimated by maximum likelihood. If xvar is specified, reference intervals for yvar conditional on xvar are estimated. Typically, xvar is age. The parameters of the distribution are modelled as functions of xvar using fractional polynomials (see fracpoly). xripred calculates the survival, density and hazard functions according to the most recently-fitted xriml model. This is an update of a program published in STB-40. This is version 4.0.1 of the software, requiring Stata 8.0.

Language: Stata
Requires: Stata version 8.0
Keywords: reference; intervals (search for similar items in EconPapers)
Date: 2000-07-24
Note: This module may be installed from within Stata by typing "ssc install xriml". Windows users should not attempt to download these files with a web browser.

Downloads: (external link)
http://fmwww.bc.edu/repec/bocode/x/xriml.ado program code (text/plain)
http://fmwww.bc.edu/repec/bocode/x/xriml.hlp help file (text/plain)
http://fmwww.bc.edu/repec/bocode/x/xripred.ado program code (text/plain)
http://fmwww.bc.edu/repec/bocode/x/xripred.hlp help file (text/plain)
http://fmwww.bc.edu/repec/bocode/x/xri_egll.ado program code (text/plain)
http://fmwww.bc.edu/repec/bocode/x/xri_enll.ado program code (text/plain)
http://fmwww.bc.edu/repec/bocode/x/xri_mell.ado program code (text/plain)
http://fmwww.bc.edu/repec/bocode/x/xri_mpll.ado program code (text/plain)
http://fmwww.bc.edu/repec/bocode/x/xri_nll.ado program code (text/plain)
http://fmwww.bc.edu/repec/bocode/x/xri_pnll.ado program code (text/plain)
http://fmwww.bc.edu/repec/bocode/x/xri_slll.ado program code (text/plain)
http://fmwww.bc.edu/repec/bocode/c/centcalc.ado program code (text/plain)
http://fmwww.bc.edu/repec/bocode/c/centcalc.hlp help file (text/plain)

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