Click here to see the SAS code. 
Click here to see the example.

This radar chart shows a different way to plot the same data that
was shown in the dealer example.

This uses "proc gradar" (a relatively new sas/graph proc).

One special trick I had to use to get the axis spokes to all
be to a different scale was to use the "spokescale=vertex"
option (this option is 'undocumented' in v9.1.3, but should
be fully documented in v9.2).

The advantage here, over a normal gplot, is that each spoke can be
an independently-scaled axis, and you don't have to 'normalize' the
values to plot them together (like you did in gplot).

Being a relatively new/young sas/graph proc, the gradar procedure
is not quite as rock-solid and robust as the other sas/graph
procs ... but it still does a fairly nice radar chart :)

To add a little 'spice', I used annotate to do a gradient shaded
background effect, to make it look like there is a light behind
the radar chart.  I did this drawing concentric shaded circles
using annotate's "pie" function.

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