Using R with Org-babel
#### to export a graph created by R, use the following line to start the R code:
#+begin_src R :results graphics :file lightning.png :exports both
- :results graphics exports the results as a graphics file.
- :file lightning.png exports the graph to a file named lightning.png
- :exports both exports both the code and the results
to end the R code use the following line
R Emacs Tips
type M-x R to start the inferior R process in an emacs buffer
if you start R-mode in the same directory each time and save the
session at the end of your session, then your history and session
variables will be preserved between sessions.