[R] lr with positive coeffs

Prof Brian Ripley ripley at stats.ox.ac.uk
Fri Oct 12 15:28:48 CEST 2001

On Fri, 12 Oct 2001, Sandor Lehoczky wrote:

> Is there any way in R to do a linear regression with positive
> coefficients only?

Yes. There is an example in the MASS scripts ch09.R.
You could also use 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 272860 (secr)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595

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