[R] multiroot() anyone?

Prof Brian D Ripley ripley at stats.ox.ac.uk
Tue Mar 19 22:47:43 CET 2002

On Tue, 19 Mar 2002, Mai Zhou wrote:

> Dear list, Did anybody have something like multiroot(),
> similar to uniroot() only for several varibles/function?
> I know the difficulty several varibles bring. But for
> nice functions, it can be useful.
> We are thinking of writing one....I thought to ask first.

I use optim() on the squared difference from the target value (here zero).

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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