The GRADAR Procedure

Overview

The GRADAR procedure creates radar charts that show the relative frequency of data measures in quality control or market research problems. Radar charts are sometimes also called star charts.

On a radar chart, the chart statistics are displayed along spokes that radiate from the center of the chart. The charts are often stacked on top of one another with reference circles, thus giving them the look of a radar screen. By default, the chart vertices--the points where the statistical values intersect the spokes--are based on the frequencies associated with the levels of a single numeric variable. Non-integer values of the chart variable are truncated to integers. The measures can be displayed in decreasing order, the order in which they appear in the input data, increasing order of internal values, or lexicographic order of variable names.

Note: The GRADAR procedure is not supported by the Java device drivers. [cautionend]

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