Coyote's Guide to IDL Programming

Turning Axis Labelling Off

QUESTION: I want to draw the axis, but I don't want the axis to be labelled. How can I turn axis labelling off?

ANSWER: For an axis that is normally labelled with numbers, the easiest way to turn axis labelling off (e.g. the labelling for the X axis) is to use the XTICKFORMAT keyword set to the format "(A1)". For example, here is code that will produce a plot with the X axis labels turned off.

   x = FINDGEN(100)
   x = SIN(x/5) / EXP(x/50)

Here is an example of how the axis looks with labelling turned off.

Picture of IDL Plot with X axis labelling turned off (2K)

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