[R] precompiled ode with spline input

[Daniel Kaschek]

I tried to use lsode with precompiled C code instead of an R function
defining the derivatives. No problem so far.

However, now I need to implement an ODE that contains spline functions,
i.e. the derivatives at given time points depend on the value of a
spline function at this time point. What is an efficient way to
implement this in precompiled C code?

-- 
Daniel Kaschek <daniel.kaschek at physik.uni-freiburg.de>
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