Missing book link, and deFit package

[hwborchers]

Missing book link

The section "Ordinary Differential Equations" has this description of the {rODE} package,

Package r pkg("rODE") (inspired **by** the book of Gould, Tobochnik and 
Christian, 2016) aims to show physics, math, and engineering students 
how ODE solvers can be made with R's S4 classes.

but the book is not listed in the "Links" section. I assume the following book is meant (though I doubt this is a reasonably good textbook):

Gould, H., Tobochnik, J., and Christian, W. 2017. An Introduction to Computer Simulation Methods - Applications to Physical Systems. Revised Third Ed., CreateSpace Self Publishing Platform.

Package {deFit}

• deFit: Fitting Differential Equations to Time Series Data

  Use numerical optimization to fit ordinary differential equations (ODEs) to time series data to examine the dynamic relationships between variables or the characteristics of a dynamical system. It can now be used to estimate the parameters of ODEs up to second order, and can also apply to multilevel systems.

I wonder whether this package might fit into the DifferentialEquations Task View; at least it is not mentioned in the Time Series Analysis Task View.

[tpetzoldt]

Many thanks for the suggestions! Package deFit is already on my list for the next update, together with fitode. I don't know the book of Gould et al. myself, but it is explicitly mentioned by the rODE authors. We can of course add it to the book list, and probably also Griffiths G.W. (2016) Numerical analysis using R. Cambridge University Press.

[tpetzoldt]

• added the book to the description of the rODE package, but not to the "Links" section because it is not an R book.
• added Griffiths (2016)
• added packages deFit, fitode and magi.