[R] probit etc. for dose-response modeling

[Prof Brian D Ripley]

Sounds like you need to dichotomize.

More generally, R can only fit a fully-specified statistical model.
Specifying the model is the hard part of applied statistics.

On Wed, 28 Aug 2002, Johannes Ranke wrote:

> the "healthy status" of our cells is around 1, and if they are
> inactive, they are around 0. Values > 1 and < 0 do occur.
>
>

-- 
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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