Usage
nlmLSODEcp(model, data, LogParms = TRUE, JAC = FALSE, SEQ = FALSE,rtol = 1e-4, atol = 1e-4, tcrit = NULL, hmin = 0, hmax = Inf)
Arguments
model
either an R-function that computes the values of the
derivatives in the ODE system (the model definition) at time
t.The return value of model should be a list. See package
"nlmeODE" for more details.
data
nlme GroupedData format.
LogParms
transform parameters into log scale
JAC
A JAC set FALSE. This time we can implement this parts.
rtol
relative error tolerance, either a scalar or an array as
long as y. See details.
atol
absolute error tolerance, either a scalar or an array as
long as y. See details.
tcrit
if not NULL, then lsoda cannot integrate
past tcrit. The FORTRAN routine lsoda overshoots its
targets (times points in the vector times), and interpolates
values for the desired time points. If there is a time beyond which
integration should not proceed (perhaps because of a singularity),
that should be provided in tcrit.
hmin
an optional minimum value of the integration stepsize. In
special situations this parameter may speed up computations with the
cost of precision. Don't use hmin if you don't know why!
hmax
an optional maximum value of the integration stepsize. If
not specified, hmax is set to the largest difference in
times, to avoid that the simulation possibly ignores
short-term events. If 0, no maximal size is specified.