A class for managing MCSimMod models.
Details
Instances of this class represent ordinary differential equation (ODE)
models. A Model
object has both attributes (i.e., things the object “knows”
about itself) and methods (i.e., things the object can “do”). Model
attributes include: the name of the model (mName
); a vector of parameter
names and values (parms
); and a vector of initial conditions (Y0
). Model
methods include functions for: translating, compiling, and loading the model
(loadModel
); updating parameter values (updateParms
); updating initial
conditions (updateY0
); and running model simulations (runModel
). So, for
example, if mod
is a Model object, it will have an attribute called parms
that can be accessed using the R expression mod$parms
. Similarly, mod
will have a method called updateParms
that can be accessed using the R
expression mod$updateParms()
. Use the createModel()
function to create
Model
objects.
Fields
mName
Name of an MCSim model specification file, excluding the file name extension
.model
.mString
Character string containing MCSim model specification text.
initParms
Function that initializes values of parameters defined for the associated MCSim model.
initStates
Function that initializes values of state variables defined for teh associated MCSim model..
Outputs
Names of output variables defined for the associated MCSim model.
parms
Named vector of parameter values for the associated MCSim model.
Y0
Named vector of initial conditions for the state variables of the associated MCSim model.
paths
List of character strings that are names of files associated with the model.
writeTemp
Boolean specifying whether to write model files to a temporary directory. If value is TRUE, model files will be Written to a temporary directory; if value is FALSE, model files will be Written to the same directory that contains the model specification file.
Methods
cleanup(deleteModel = FALSE)
Delete files created during the translation and compilation steps performed by
loadModel
. IfdeleteModel = TRUE
, delete the MCSim model specification file, as well.initialize(...)
Initialize the Model object using an MCSim model specification file (mName) or an MCSim model specification string (mString).
loadModel(force = FALSE)
Translate (if necessary) the model specification text to C, compile (if necessary) the resulting C file to create a dynamic link library (DLL) file (on Windows) or a shared object (SO) file (on Unix), and then load all essential information about the Model object into memory (for use in the current R session).
runModel(times, ...)
Perform a simulation for the Model object using the
deSolve
functionode
for the specifiedtimes
.updateParms(new_parms = NULL)
Update values of parameters for the Model object.
updateY0(new_states = NULL)
Update values of initital conditions of state variables for the Model object.