Ethan Ligon <li...@are.berkeley.edu> writes: > Dan Davison has a brief worg tutorial on using babel with octave at > > http://orgmode.org/worg/org-contrib/babel/languages/ob-doc-octave-matlab.html > Hi Ethan,
> Amongst other things, he offers the following example block for > producing a figure: (Actually, the example is not by me.) > #+begin_src octave :output file :file chart.png > figure( 1, "visible", "off" ); > sombrero; > print -dpng chart.png > #+end_src :output file is wrong (there's no header arg named :output). :file chart.png says to write the results to that file. The "results" are whatvever the variable `ans` holds at the end of the block, and I think that must be the file path you're seeing. One way to write that example is: #+begin_src octave :results file figure( 1, "visible", "off" ); sombrero; print -dpng chart.png; ans = "chart.png"; #+end_src :results file says to interpret the result as a file path. I've updated the worg page. Dan > However, rather than delivering the png figure, the file chart.png > consists solely of the string "/usr/share/octave/packages/3.2". I'm > not sure where this string is coming from: > it's *not* part of the > stuff that octave writes to stdout when the interpreter is invoked (my > first guess). > > I suspect that the options that need to be offered on the #+begin_src > line have changed somehow since that worg page was last updated at the > end of April of this year, but don't really know. > > Help! > -Ethan
