[ESS] Go to function definition

[Sebastien Vauban]

Hello,

I'm wondering whether there is a possibility to be able to jump to the
definition of the function under point, like `f2' does in RStudio (to
see the code of R functions such as `substring' or your own functions)?

How do you do that?

With a TAGS file?  How do you generate it for both your code and the
R packages?

Other solution?

Best regards,
  Seb

-- 
Sebastien Vauban