Forest Products Laboratory

FORTRAN computer code for a nonparametric, one-sided, lower confidence bound on a quantile

Disclaimer of Warranties

We have developed FORTRAN computer code that calculates the order statistic that corresponds to a nonparametric, one-sided, lower confidence bound on a quantile. A web program to perform this calculation can be run at

A standalone FORTRAN version of this computer code can be found here.

This program also depends upon the DCDFLIB cumbet subroutine. DCDFLIB is a public domain library of "routines for cumulative distribution functions, their inverses, and their parameters." It was produced by Barry Brown, James Lovato, and Kathy Russell of the Department of Biomathematics, M.D. Anderson Cancer Center, The University of Texas. DCDFLIB can be found at .


If you have questions about this software, or suggestions for improvement, please contact Steve Verrill at or 608-231-9375.

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Last modified on 12/31/16.

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