XRIML: Stata module for estimation of reference intervals ('normal ranges') by maximum likelihood

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

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 help fracpoly).

Language: Stata
Requires: Stata version 8
Keywords: reference intervals; maximum likelihood; fractional polynomials (search for similar items in EconPapers)
Date: 2011-01-22
Note: This module should be installed from within Stata by typing "ssc install xriml". 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/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/c/centcalc.ado program code (text/plain)
http://fmwww.bc.edu/repec/bocode/c/centcalc.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/s/str2ph.ado program code (text/plain)
http://fmwww.bc.edu/repec/bocode/s/str2ph.hlp help file (text/plain)

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