org-plot jumps over empty columns

[Anders Wirzenius <anders.wirzenius@netikka.fi>]

Hi,
this is my first post to this newsgroup and it is a negative one (bug
report)! :-(
So I start with sending my kudos to all developers. Big thanks! :-)

Problem:
It seems that org-plot/gnuplot assumes there is a non-empty value
on each row of the table.

Org-plot/gnuplot jumps over empty columns and picks up the value
from the first non-empty column when executed.

In the example below where column 7 should be plotted, the last two
values are taken from column 8.
If I change the column to be plotted from 7 to 8, all values are
taken from column 9.

Test also plotting column 11 or 12.

-----example----------example----------example----------example-----
#+PLOT: set:"xdata time" 
#+PLOT: set:"timefmt '%Y-%m-%d'"
#+PLOT: set:"format x '%b %Y'"
#+PLOT: set:"y2tics"
#+PLOT: set:"xtics rotate"
#+PLOT: set:"grid"
#+PLOT: set:"key outside right"
#+PLOT: title:"Energi" ind:1 deps:(7) type:2d with:lines 
#+PLOT: labels:("datum" "MW" "m**3" "delta_t" "in" "ut" "natt" "dag" "ute" "daglig" "el" "vatten" "per vecka" "ute 14")
|      datum |  MW | m**3 | delta_t | in | ut | natt | dag | ute | daglig |     el |   vatten | vecka | ute 14 |
|------------+-----+------+---------+----+----+------+-----+-----+--------+--------+----------+-------+--------|
| 2008-01-20 | 0.9 |   22 |    32.3 | 77 | 44 |   45 |     |   1 |        | -15562 | 247.9692 |  0.10 |  -0.93 |
| 2008-01-21 | 0.9 |   23 |    37.4 | 82 | 45 |   47 |     |  -1 |   0.00 |        |          |  0.12 |  -1.79 |
| 2008-01-22 | 1.1 |   26 |    40.8 | 79 | 39 |   45 |     |   0 |   0.20 |        |          |  0.12 |  -1.71 |
| 2008-01-23 | 1.2 |   29 |    33.6 | 78 | 44 |   47 |     |  -1 |   0.10 |        |          |  0.12 |  -1.64 |
| 2008-01-24 | 1.3 |   32 |    40.7 | 81 | 40 |   44 |     |  -2 |   0.10 |        |          |  0.12 |  -1.57 |
| 2008-01-25 | 1.4 |   35 |    40.2 | 77 | 38 |   46 |     |   0 |   0.10 |        |          |  0.12 |  -1.36 |
| 2008-01-26 | 1.5 |   38 |    35.7 | 76 | 40 |   36 |     |   0 |   0.10 |        |          |  0.12 |  -1.21 |
| 2008-01-27 | 1.6 |   41 |    36.0 | 78 | 41 |   41 |     |  -3 |   0.10 |        |          |  0.12 |  -1.07 |
| 2008-01-28 | 1.8 |   44 |    42.6 | 89 | 46 |      |  49 |  -4 |   0.20 |        |          |  0.10 |  -0.93 |
| 2008-01-29 | 1.9 |   46 |    43.9 | 77 | 33 |      |  45 |   2 |   0.10 |        |          |  0.12 |  -0.86 |

-- 
Anders