calculating IC50
Hi! Yes, the 'drc' package can be used to obtain IC50 or any other ICx value for several, commonly used dose-response models. The vignette is more up-to-date than the article in JSS (which dates back to the start of 2005). Christian
Liaw, Andy wrote:
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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