[R] calculating IC50

[Liaw, Andy]

Perhaps also of interest is the `drc' package on CRAN.  There's an article
in JSS describing it (probably the same as the package vignette--- haven't
checked).

Andy

From: Prof Brian Ripley
> 
> On Thu, 2 Feb 2006 Arne.Muller at sanofi-aventis.com wrote:
> 
> > I was wondering if there is an R-package to automatically 
> calculate the 
> > IC50 value (concentration of a substrance that inhibits 
> cell growth to 
> > 50%) for some measurements.
> 
> Function dose.p in recommended package MASS.
> 
> -- 
> 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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