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 |

1 2 |

1 2 3 4 |

1 2 | ```
nlscontour Draws a contourplot of the sum of squares function around a couple of parameters
summary.nlsgrid Details on an nlsgrid
``` |

1 2 3 | ```
logis Logistic growth of bacteria
syslin Pharmacokinetics : intramuscular injection
syslin.don Intra muscular injection (columns)
``` |

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 <[email protected]> Maintainer: Jean-Sebastien Pierre <[email protected]>

Numerical Recipes http://www.nr.com

nlsrk documentation built on June 24, 2017, 1:02 a.m.

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