Hi Ken, In order for caching to work, the results of the code block must exist in the org-mode file. For example, the following code block will be evaluated when triggered either interactively or during export
#+begin_src emacs-lisp :cache yes (+ 2 2) #+end_src alternately, this block will not be evaluated when triggered either interactively or on export, because the cached results are present #+begin_src emacs-lisp :cache yes (+ 2 2) #+end_src #+results[9b77429d6cea71daf37e21ee09170810b9905066]: : 4 In your example, for the code block to not be evaluated as part of the export process, you must first evaluate it manually within the Org-mode file, leaving the results (with the hash tag) saved in the Org-mode file. Best -- Eric <ken.willi...@thomsonreuters.com> writes: > Hi, > > I'm having some trouble getting ":cache yes" to behave the way I think > it's supposed to. As a test, I have a simple example containing just a > title and one source block: > > #+source: testcache > #+begin_src R :cache yes :exports both :results output > dat <- matrix(runif(12), 3, 4) > print(dat) > #+end_src > > > If I export this document to HTML (C-c C-e b), Emacs asks me "Evaluate > this R code block (testcache) on your system?" If I say 'y' it > re-evaluates, if I say 'n' it doesn't, so it doesn't seem like there's any > role that caching gets to play here. > > In addition, when I export the document as above, the results are not > saved in the original org-mode buffer, so whatever "#+results" block is > there (or not there) from doing C-c C-c is neither used nor overwritten - > and therefore the exported document contains different results than the > source document. > > The behavior I expected (please let me know if my expectation is > incorrect) was for the result of the computation to be cached in the Emacs > buffer when I do the first export, and for that saved result to be > included in the exported content for subsequent exports, until either the > code/inputs change or I delete the results block. > > My configuration is: > > Emacs : GNU Emacs 23.2.50.1 (i386-apple-darwin9.8.0, NS > apple-appkit-949.54) > of 2010-08-18 on braeburn.aquamacs.org - Aquamacs Distribution 2.1 > Package: Org-mode version 7.5 > > Thanks! > > > -- > Ken Williams > Senior Research Scientist > Thomson Reuters > http://labs.thomsonreuters.com
