Description Usage Arguments Value Note
Provides the motion of each state variable (change in that variable as a function of itself and parameters)
1 | stateMotion(state0, stateVar = c("A0", "F0", "J0"), pars)
|
state0 |
numeric, value of a state variable (can be scalar or vector, not named) |
stateVar |
character, name of state variable whose motion you want |
pars |
named vector of parameters, needs to at least include qE |
numeric scalar or vector indicating the rate of change of the state variable
These functions should essentially replace dFJ_dt_1state
. The A motion function was not an option in dFJ_dt_1state
, though. Both A motion and J motion are done without much algebra or substitution; however, getting the equation/ function for F motion requires doing some alebraic substitution to get the A state variable to cancel out. Dividing by A and letting it cancel probably involves some extra assumption that might make the F motion equation/ function invalid in certain areas of state-space.
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