[R] calculating IC50

[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)
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