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It contains functions that solve least squares linear regression problems under linear equality/inequality constraints. Functions for solving quadratic programming problems are also available, which transform such problems into least squares ones first. It is developed based on the 'Fortran' program of Lawson and Hanson (1974, 1995), which is public domain and available at <http://www.netlib.org/lawsonhanson>.
Package details 


Author  Yong Wang [aut, cre], Charles L. Lawson [aut], Richard J. Hanson [aut] 
Maintainer  Yong Wang <[email protected]> 
License  GPL (>= 2) 
Version  1.20 
URL  https://www.stat.auckland.ac.nz/~yongwang 
Package repository  View on CRAN 
Installation 
Install the latest version of this package by entering the following in R:

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