system_set_covariate function

Set Covariate Values

Covariates specified in the system file using <CV:?>

and <CVSET:?:?> will have their default values for a given parameter set. This function is a means to overwrite those values.

system_set_covariate(cfg, covariate, times, values)

Arguments

• cfg: ubiquity system object
• covariate: name of the covariate
• times: list of times (system time units)
• values: corresponding list of values

Returns

Ubiquity system object with the covariate set

Examples

# Creating a system file from the mab_pk example
fr = system_new(file_name        = "system.txt", 
                system_file      = "mab_pk", 
                overwrite        = TRUE, 
                output_directory = tempdir())

# Building the system 
cfg = build_system(system_file  = file.path(tempdir(), "system.txt"),
      output_directory          = file.path(tempdir(), "output"),
      temporary_directory       = tempdir())

# Setting the covariate WT to 50
cfg = system_set_covariate(cfg, 
                           covariate = "WT",
                           times     = c(0), 
                           values    = c(50))