Extract elements of the current variance/covariance matrix
specified in the system file with <IIV:?:?> ?
, <IIVCOR:?:?>?
, <IIVSET:?:?> ?
, <IIVCORSET:?:?>?
Arguments
- cfg
ubiquity system object
- IIV1
row name of the variance/covariance matrix
- IIV2
column name of the variance/covariance matrix
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//Rtmpsk
#> → 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")
# }