Hi I would like to save all in org defined variables into an R data file. In general this works fine with the following code block: #+begin_src R :session null :results output dir.create("./data/", showWarnings=FALSE) save.image("./data/orgData.rda") #+end_src but, as I have defined a file wide session for R via #+PROPERTY: session *R_MOBILIS* I have to create a new session for this, which is not that nice: when I remove a variable in org, it is still in the R environment and will therefore be saved. Therefore my question: what can I provide to the :session header, so that no session is used? In other words: how can I run a single code block out-of-session when all other are running in a session? Thanks, Rainer -- Rainer M. Krug, PhD (Conservation Ecology, SUN), MSc (Conservation Biology, UCT), Dipl. Phys. (Germany) Centre of Excellence for Invasion Biology Stellenbosch University South Africa Tel : +33 - (0)9 53 10 27 44 Cell: +33 - (0)6 85 62 59 98 Fax : +33 - (0)9 58 10 27 44 Fax (D): +49 - (0)3 21 21 25 22 44 email: Rainer@krugs.de Skype: RMkrug