If you wish to load Deducer every time you start the Non-JGR R Console, open Rprofile.site with notepad. It should be located in the directory: C:\Program Files\R\R-x.x.x\etc

then add:

old <- getOption("defaultPackages")
options(defaultPackages = c(old, "Deducer"))

If you are using JGR, simply open the package manager, and click "default" next to Deducer. Do not use the above instructions. They will render it inoperable. It is highly recommended that Deducer be used with JGR, so the above should be used VERY rarely