[R] $R_HOME

[Bai Yan]

Suppose the R source file is at: /disk/R-1.6.2/
and R is installed at: /disk/R/

Which valud is $R_HOME?
1. /disk/
2. /disk/R-1.6.2
3. /disk/R/

I thought the answer is 3 but not sure. From the manual "R
installation and Administration", it says 'Choose a place to install
the R tree, let's call this place R_HOME'. Untar the source code.
This looks like No.1 is the correct answer because /disk/ is the place to
untar the source code. Please correct me if I am wrong. Thanks very much!

Yan