I am attempting to generate a simple chart from gnuplot using the source of an org-table. When I execute the gnuplot src block I get the message "Source block produced no output". Does anyone have any suggestions as to what might be the cause? I have included a sample of what I am trying to run:
#+tblname: sessions
| Date | Time | Distance |
|------------+-------+----------|
| 09/02/2010 | 15:13 | 2.5 |
| 09/01/2010 | 14:00 | 2.4 |
#+begin_src gnuplot :var data=sessions
:file org-running.png :exports both
set title "Running Stats"
set auto x
set style data histogram
set style fill solid border -1
set boxwidth .9
set xlabel "Date"
set ylabel "Time"
plot "$data" using 1:2:3 notitle
#+end_src