XRIML: Stata module for estimation of reference intervals ('normal ranges') by maximum likelihood
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).
|Requires:||Stata version 8|
|Date of creation:||22 Jan 2011|
|Date of revision:|
|Note:||This module should be installed from within Stata by typing "ssc install xriml". Windows users should not attempt to download these files with a web browser.|
|Contact details of provider:|| Postal: |
Web page: http://fmwww.bc.edu/EC/
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|Order Information:||Web: http://repec.org/docs/ssc.php|
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