How to define “hidden global variables” inside R packages?

Question

I have the following 2 functions in R:

exs.time.start<-function(){
  exs.time<<-proc.time()[3]
  return(invisible(NULL))
}

exs.time.stop<-functi         


        

Answer 1

I use package-global environments in a few packages:

• RcppGSL stores config info about the GSL libraries

• RPushbullet stores some user-related meta data

and there are probably some more but you get the idea.