system_set_iiv function

Set Variability Terms

Set elements of the current variance covariance matrix specified in the system file with <IIV:?:?> ?, <IIVCOR:?:?>?, <IIVSET:?:?> ?, <IIVCORSET:?:?>?

system_set_iiv(cfg, IIV1, IIV2, value)

Arguments

• cfg: ubiquity system object
• IIV1: row name of the variance/covariance matrix
• IIV2: column name of the variance/covariance matrix element
• value: value to assign to the variance/covariance matrix element

Returns

Ubiquity system object with IIV information 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())

# Clearing all inputs
cfg = system_zero_inputs(cfg)

# Setting the covariance element for CL and Vc to 0.03
cfg = system_set_iiv(cfg,
                     IIV1 = "ETACL",
                     IIV2 = "ETAVc",
                     value=0.03)

See Also

system_fetch_iiv