Prof Brian Ripley ripley at stats.ox.ac.uk
Fri Jan 23 08:26:33 CET 2004

On Fri, 23 Jan 2004, Briggs, Meredith M wrote:

> Is there an R package that solves linear least squares with upper and
> lower bounds on the variables. Something like the Parker and Stark
> algorithm written in Fortran.

Probably not, but this is an easy application of optim(method="L-BFGS")
or of solve.QP() in package quadprog.

Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272866 (PA)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595

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