Description Details Univariate functions (single ODE) Multivariate functions (ODEs system) Utility data Note Author(s) References See Also
Performs univariate or multivariate computation of a single ODE or of a set of ODE (ordinary differential equations)
Package: | nlsrk |
Version: | 1.0 |
Date: | 2006-09-07 |
Depends: | R (>= 1.8.0) |
Suggests: | |
License: | GPL version 2 or newer |
URL: | none |
Built: | R 2.2.1; ; 2006-02-22 19:52:45; windows |
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1 2 | nlscontour Draws a contourplot of the sum of squares function around a couple of parameters
summary.nlsgrid Details on an nlsgrid
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1 2 3 | logis Logistic growth of bacteria
syslin Pharmacokinetics : intramuscular injection
syslin.don Intra muscular injection (columns)
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nlsrk provides to nls(stats) an evaluation of functions defined by first order Ordinary Differential Equations (ODEs). For a single ODE use frunge
and edit dfdt
. For a system of ODEs, use the multivariate functions evrunge
and edit sys
. The method used in both cases is the Runge-Kutta 4 method. The result is not guaranteed especially for "stiff" systems of equations.
Jean-Sebastien Pierre <jean-sebastien.pierre@univ-rennes1.fr> Maintainer: Jean-Sebastien Pierre <jean-sebastien.pierre@univ-rennes1.fr>
Numerical Recipes http://www.nr.com
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