The GCONTOUR procedure
enables you to generate two-dimensional plots representing three-dimensional
relationships.
For example, the
following 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.
With PROC GCONTOUR,
you can do the following actions:
-
use AXIS statements to customize
the axes
-
use line styles and patterns to
emphasize the contour levels
-
use reference lines to see how
(x,y) combinations
align to
z values
-
use SYMBOL statements to customize
labels or highlight data trends