Saving functions

  I have written a function in a text editor and saved it with an .R
extension. It is saved in my working directory. How can I run it, do I
need to use source? 

Just to add to Jim's reply: if you want to have this function
available every time you use R, you could put it into your "Rprofile"
file.

I'm using Linux, and for me this is just a text file saved in my home
directory "~/.Rprofile" (note the dot). Everything in there gets read
when I start R.

Not sure about other OSes. Maybe google "Rprofile".

HTH

m.

Marianne Promberger
Graduate student in Psychology
http://www.psych.upenn.edu/~mpromber