Some control of the axes in an IDL plot can be done through the [xyz]style keyword.
| Value | Description |
| 1 | Force exact axis range (from data) |
| 2 | Extend axis range |
| 4 | Suppress entire axis. This will eliminate plotting the axes at all. Useful if you want to use the axis procedure later to fill in the axes. |
| 8 | Draw axis only on one side. |
| 16 | Inhibit setting the Y axis minimum value to 0 (only works on y axis) |
These keywords are bitwise so they can be added together to get a combination of effects.
NOTE: if you want to just suppress the text and tick marks in one of the axes:
plot, x, y, yticks = 1, ytickname = [' ', ' ']
This will set the plot to have only one major tick interval at the top and bottom of the axis and name them with a string with an empty space.