I want to record my learning curve for the popPK and nlmixr2 library.

There is 'nlmixr2CheckInstall' method for checking the installation status of nlmixr2. It seemed to check the version of dependencies.

Here is the code executed:

library(nlmixr2)

nlmixr2CheckInstall()

And Here is the results on the console panel of RStudio:

R version 4.2.3 (2023-03-15 ucrt) -- "Shortstop Beagle"
Copyright (C) 2023 The R Foundation for Statistical Computing
Platform: x86_64-w64-mingw32/x64 (64-bit)

R is free software and comes with ABSOLUTELY NO WARRANTY.
You are welcome to redistribute it under certain conditions.
Type 'license()' or 'licence()' for distribution details.

R is a collaborative project with many contributors.
Type 'contributors()' for more information and
'citation()' on how to cite R or R packages in publications.

Type 'demo()' for some demos, 'help()' for on-line help, or
'help.start()' for an HTML browser interface to help.
Type 'q()' to quit R.

> library(nlmixr2)
Loading required package: nlmixr2data
> nlmixr2CheckInstall()
ℹ Operating system: Windows 10 x64 build 22621
Loading required namespace: devtools
Found in Rtools 4.2 installation folder
✔ Rtools appears to be installed successfully
✔ The 'make' command was found:  C:\rtools42\usr\bin\make.exe
ℹ GNU Make 4.3
Built for x86_64-pc-msys
Copyright (C) 1988-2020 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
✔ The package 'rxode2' is installed and seems to be up to date, version 2.0.12
✔ The package 'rxode2et' is installed and seems to be up to date, version 2.0.10
✔ The package 'rxode2parse' is installed and seems to be up to date, version 2.0.15
✔ The package 'rxode2ll' is installed and seems to be up to date, version 2.0.11
✔ The package 'rxode2random' is installed and seems to be up to date, version 2.0.11
✔ The package 'nlmixr2' is installed and seems to be up to date, version 2.0.9
✔ The package 'nlmixr2est' is installed and seems to be up to date, version 2.1.4
✔ The package 'nlmixr2data' is installed and seems to be up to date, version 2.0.7
✔ The package 'nlmixr2lib' is installed and seems to be up to date, version 0.1.0
✔ The package 'nlmixr2extra' is installed and seems to be up to date, version 2.0.8.9000
✔ The package 'babelmixr2' is installed and seems to be up to date, version 0.1.0