Benoit Boulinguiez
2008-Oct-15 08:48 UTC
[R] parameter assessment in differential equation
Hi, I'd like to know whether R is capable to assess parameters in a model describing the kinetic of a pollutant adsorption onto activated carbon. A common relation is for instance the Adam-Bohart-Thomas' one: dx/dt = K1 * (qm-x)*C - K2x where {K1,K2} are the unknown paramters and {qm,C} are known parameters Of course I get experimental data sets of measured x as a function of time. If R can help to handle that, which functions have to be used (diff, optim, nls...) Regards/Cordialement ------------- Benoit Boulinguiez Ph.D Ecole de Chimie de Rennes (ENSCR) Bureau 1.20 Equipe CIP UMR CNRS 6226 "Sciences Chimiques de Rennes" Campus de Beaulieu, 263 Avenue du Général Leclerc 35700 Rennes, France Tel 33 (0)2 23 23 80 83 Fax 33 (0)2 23 23 81 20 http://www.ensc-rennes.fr/ [[alternative HTML version deleted]]
Benoit Boulinguiez <benoit.boulinguiez <at> ensc-rennes.fr> writes:> I'd like to know whether R is capable to assess parameters in a model > describing the kinetic of a pollutant adsorption onto activated carbon. >Start with the deSolve package (especially demo(CCL4model)) Ben Bolker