How do you find what packages are installed when you install R?

It is very easy to find.

1. Launch R

2. Click Packages as shown. Click Load Packages and this code is run.

> local({pkg <- all.available="TRUE)),graphics=TRUE)<br" packages="" select.list="" sort="">+ if(nchar(pkg)) library(pkg, character.only=TRUE)})

After a while the list of available packages appear and you can choose the one you want.

 

4. If click, say Matrix and click OK, the matrix related package gets loaded, you get just the R prompt and nothing else.