This returns the model's parameters that are required to solve the ODE system, and can be used to pipe parameters into an RxODE solve
rxParams(obj, ...)
# S3 method for RxODE
rxParams(
obj,
constants = TRUE,
...,
params = NULL,
inits = NULL,
iCov = NULL,
keep = NULL,
thetaMat = NULL,
omega = NULL,
dfSub = NULL,
sigma = NULL,
dfObs = NULL,
nSub = NULL,
nStud = NULL
)
# S3 method for rxSolve
rxParams(
obj,
constants = TRUE,
...,
params = NULL,
inits = NULL,
iCov = NULL,
keep = NULL,
thetaMat = NULL,
omega = NULL,
dfSub = NULL,
sigma = NULL,
dfObs = NULL,
nSub = NULL,
nStud = NULL
)
# S3 method for rxEt
rxParams(
obj,
...,
params = NULL,
inits = NULL,
iCov = NULL,
keep = NULL,
thetaMat = NULL,
omega = NULL,
dfSub = NULL,
sigma = NULL,
dfObs = NULL,
nSub = NULL,
nStud = NULL
)
rxParam(obj, ...)
obj | RxODE family of objects |
---|---|
... | Other arguments including scaling factors for each compartment. This includes S# = numeric will scale a compartment # by a dividing the compartment amount by the scale factor, like NONMEM. |
constants | is a boolean indicting if constants should be included in the list of parameters. Currently RxODE parses constants into variables in case you wish to change them without recompiling the RxODE model. |
params | a numeric named vector with values for every parameter in the ODE system; the names must correspond to the parameter identifiers used in the ODE specification; |
inits | a vector of initial values of the state variables (e.g., amounts in each compartment), and the order in this vector must be the same as the state variables (e.g., PK/PD compartments); |
iCov | A data frame of individual non-time varying covariates
to combine with the |
keep | Columns to keep from either the input dataset or the
|
thetaMat | Named theta matrix. |
omega | Estimate of Covariance matrix. When omega is a list, assume it is a block matrix and convert it to a full matrix for simulations. |
dfSub | Degrees of freedom to sample the between subject variability matrix from the inverse Wishart distribution (scaled) or scaled inverse chi squared distribution. |
sigma | Named sigma covariance or Cholesky decomposition of a covariance matrix. The names of the columns indicate parameters that are simulated. These are simulated for every observation in the solved system. |
dfObs | Degrees of freedom to sample the unexplained variability matrix from the inverse Wishart distribution (scaled) or scaled inverse chi squared distribution. |
nSub | Number between subject variabilities ( |
nStud | Number virtual studies to characterize uncertainty in estimated parameters. |
When extracting the parameters from an RxODE model, a character vector listing the parameters in the model.
Matthew L.Fidler