How can I align X axis tickers of all subplots in a figure?

[John W. Eaton]

On 15-Jan-2009, Boris Ljevar wrote:

| Depending on the range of Y axis, X axis of different subplots can
| become shorter or longer, although the X axis is common for all subplots
| and always has the fixed range.
| 
| I shall try to illustrate the problem. Suppose two graphs shown below
| are plotted as subplots in a figure. 
| 
|     |          |          |          |
| 0.8 |----------------------------------
|     |          |          |          |
| 0.6 |----------------------------------
|     |          |          |          |
| 0.4 |----------------------------------
| ____|__________|__________|__________|_
|     |0         |1         |2         |3    
| ?
|        |         |         |         |
| -10000 |-------------------------------
|        |         |         |         |
|        |         |         |         |
| -20000 |-------------------------------
|        |         |         |         |
|        |         |         |         |
| -30000 |-------------------------------
| _______|_________|_________|_________|_
|        |0        |1        |2        |3 
| 
| 
| Please notice that in both graphs X axis has the same range 0-3.
| Please also notice that one axis is more compressed than the other.
| 
| These two graphs are places in a single figure for easier viewing and
| comparison. However due to misalignment of the X axis the comparison is
| difficult.
| 
| Is there a way to align the X axis values?
| 
| ?operating system: linux openSUSE 11.0
| ?octave version: 3.0.2-2.1 (?i586)
| gnuplot version: 4.2.3-27.1 (i586)
| 
| 
| 
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I think this problem is fixed in the current development sources.  I
don't think there is a simple fix for Octave 3.0.x.

jwe