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| The GCONTOUR Procedure |
Overview
The GCONTOUR procedure enables you to generate two-dimensional plots representing three-dimensional relationships. For example, the following contour plot Simple Contour Plot displays various depths of a lake. The dimensions of the lake are plotted on the x and y axes. The z variable is plotted as the third dimension, and is displayed as uniquely colored contour lines.
![[Simple Contour Plot]](images/gctlake.gif)
With PROC GCONTOUR, you can do the following actions:
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use AXIS statements to customize the axes
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use line styles and patterns to emphasize the contour levels
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use reference lines to see how (x,y) combinations align to z values
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use SYMBOL statements to customize labels or highlight data trends
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