deSolve - Solvers for Initial Value Problems of Differential Equations ('ODE', 'DAE', 'DDE')

Functions that solve initial value problems of a system of first-order ordinary differential equations ('ODE'), of partial differential equations ('PDE'), of differential algebraic equations ('DAE'), and of delay differential equations. The functions provide an interface to the FORTRAN functions 'lsoda', 'lsodar', 'lsode', 'lsodes' of the 'ODEPACK' collection, to the FORTRAN functions 'dvode', 'zvode' and 'daspk' and a C-implementation of solvers of the 'Runge-Kutta' family with fixed or variable time steps. The package contains routines designed for solving 'ODEs' resulting from 1-D, 2-D and 3-D partial differential equations ('PDE') that have been converted to 'ODEs' by numerical differencing.

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openblasfortran

13.43 score 457 dependents 10k scripts 65k downloads

growthrates - Estimate Growth Rates from Experimental Data

A collection of methods to determine growth rates from experimental data, in particular from batch experiments and plate reader trials.

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7.99 score 28 stars 146 scripts 533 downloads

simecol - Simulation of Ecological (and Other) Dynamic Systems

An object oriented framework to simulate ecological (and other) dynamic systems. It can be used for differential equations, individual-based (or agent-based) and other models as well. It supports structuring of simulation scenarios (to avoid copy and paste) and aims to improve readability and re-usability of code.

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6.34 score 181 scripts 864 downloads

qualV - Qualitative Validation Methods

Qualitative methods for the validation of dynamic models. It contains (i) an orthogonal set of deviance measures for absolute, relative and ordinal scale and (ii) approaches accounting for time shifts. The first approach transforms time to take time delays and speed differences into account. The second divides the time series into interval units according to their main features and finds the longest common subsequence (LCS) using a dynamic programming algorithm.

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5.34 score 1 stars 38 dependents 52 scripts 1.8k downloads

FAdist - Distributions that are Sometimes Used in Hydrology

Probability distributions that are sometimes useful in hydrology.

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4.82 score 4 stars 2 dependents 55 scripts 441 downloads

FAmle - Maximum Likelihood and Bayesian Estimation of Univariate Probability Distributions

Estimate parameters of univariate probability distributions with maximum likelihood and Bayesian methods.

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3.81 score 13 scripts 208 downloads

cardidates - Identification of Cardinal Dates in Ecological Time Series

Identification of cardinal dates (begin, time of maximum, end of mass developments) in ecological time series using fitted Weibull functions.

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3.34 score 22 scripts 250 downloads