Can you just put the table in a section tagged noexport, e.g.
* data
:noexport:
#+tblname: mydata
| -2 | 0 |
| -0.015 | 0 |
|| |
| 0.015 | 1 |
| 2 | 1 |
John
---
Professor John Kitchin
Doherty Hall A207F
Department of Chemical Engineering
I've got this:
#+tblname: mydata
| -2 | 0 |
| -0.015 | 0 |
|| |
| 0.015 | 1 |
| 2 | 1 |
##+begin_src gnuplot :var data=mydata :exports results :file images/gap1.png
#+begin_src gnuplot :var data=mydata :results output :file images/gap1.png
reset
set terminal png size 350,262
