Create a control object for controlling the adaptive stepper for systems of ordinary differential equations (ODEs). The returned object can be passed into a continuous-time dust model on initialisation.
Usage
dust_ode_control(
max_steps = 10000,
atol = 1e-06,
rtol = 1e-06,
step_size_min = 0,
step_size_max = Inf,
debug_record_step_times = FALSE
)Arguments
- max_steps
Maxmimum number of steps to take. If the integration attempts to take more steps that this, it will throw an error, stopping the integration.
- atol
The per-step absolute tolerance.
- rtol
The per-step relative tolerance. The total accuracy will be less than this.
- step_size_min
The minimum step size. The actual minimum used will be the largest of the absolute value of this
step_size_minor.Machine$double.eps(or the single-precision equivalent once we supportfloat-based models). If the integration attempts to make a step smaller than this, it will throw an error, stopping the integration.- step_size_max
The largest step size. By default there is no maximum step size (
Inf) so the solver can take as large a step as it wants to. If you have short-lived fluctuations in your rhs that the solver may skip over by accident, then specify a smaller maximum step size here.- debug_record_step_times
Logical, indicating if the step times should be recorded. This should only be enabled for debugging. Step times can be retrieved via
dust_system_internals().