derivPBS {stagePop} | R Documentation |
Internal-use function which allows use of the PBSddesolv ODE
solver. popModel
derivPBS(t, y, parms)
t |
Time step |
y |
state variables |
parms |
Additional parameters passed in from the original invoker of the solver |
note PBS does not allow lagged variables to be computed at the current timestep (hence the changes from the dede deriv function)
the new model state.