Hello, 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. kind regards, Arne [[alternative HTML version deleted]]
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
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 > > ______________________________________________ > R-help at stat.math.ethz.ch mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide! > http://www.R-project.org/posting-guide.html > >