Problem
R cannot detect the presence of "Rprofile.site" file in home directory's /etc folder despite it being there.
Investigation
Since the Rprofile.site lives in the home directory as /etc/Rprofile.site. I checked the home directory using R.home(component="home")
and got "/Library/Frameworks/R.framework/Resources"
. Then I created an Rprofile.site in RStudio and put it in the folder. I restarted RStudio but it still wouldn't automatically load the file.
From Efficient R Programming: https://csgillespie.github.io/efficientR/3-3-r-startup.html I tried the following:
site_path = R.home(component = "home")
fname = file.path(site_path, "etc", "Rprofile.site")
file.exists(fname)
but it yielded False despite the file being in the directory.
I made sure to add an extra line, per yi hui's post: https://yihui.name/en/2018/04/rprofile-trailing-newline/ but it still did not work.
In addition, I followed the recommendation of numerous other SO and RStudio threads to no avail.
References
Getting .Rprofile to Load at Startup
https://community.rstudio.com/t/create-rprofile-automatically-when-creating-new-project/3719