Initializing covariates before estimation

initializeCovars(
  fitobject,
  fstring,
  covNames,
  initialEst,
  initialEstLB,
  initialEstUB
)

Arguments

fitobject

an nlmixr 'fit' object

fstring

a string giving the entire expression for the model function string

covNames

a list of covariate names (parameters) that need to be estimates

initialEst

the initial estimate for the covariate parameters to be estimated; default is 0

initialEstLB

a lower bound for the covariate parameters to be estimated; default is -Inf

initialEstUB

an upper bound for the covariate parameters to be estimated; default is Inf

Value

updated model object with the modified initial values

Author

Vipul Mann, Matthew Fidler