How to change the default text editor in R when in Linux?

Question

I am programming using R in Linux and each time I want to edit a function by typing

fix(FunctioName)

The VI editor is used and for me, it

Answer 1

As always, export the desired editor in $EDITOR or $VISUAL before starting.

Answer 2

Or in R, to override the environment variable:

options(editor = "nano")