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Fetch Variability Terms

Source: R/ubiquity.R
system_fetch_iiv.Rd

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

Usage

system_fetch_iiv(cfg, IIV1, IIV2)

Arguments

cfg

ubiquity system object

IIV1

row name of the variance/covariance matrix

IIV2

column name of the variance/covariance matrix

Value

Value from the variance/covariance matrix

See also

system_set_iiv

Examples

# \donttest{
# 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())
#> 
#> ── Building the system: /var/folders/pq/7srbf_fx3rd3k706hgxkg61r0000gp/T//Rtmprz
#> → ubiquity:     https://r.ubiquity.tools
#> → Distribution: package (2.0.4)
#> → Compiling C version of system
#> → Loading the shared C library
#> ✔ System built
#> ℹ To fetch a new analysis template use `system_fetch_template`
#> ℹ For example:
#> ℹ   fr = system_fetch_template(cfg, template = "Simulation")
#> ℹ   fr = system_fetch_template(cfg, template = "Estimation")

# Covariance term for ETACL and ETAVc
val = system_fetch_iiv(cfg, IIV1="ETACL", IIV2="ETAVc")
# }