Click here to see the SAS code.
Click here to see the example.
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I use a sas/graph gplot to set up the axes & coordinate system.
But I basically suppress everything else about the gplot (axes, etc).
The markers are custom sas/graph annotate. I use the sas/graph 'marker'
software font to do the left/right/up/down trend arrows, and the round
dot in the middle of the arrow. This is all data-driven, via the data
in the dataset.
The colored areas and the labels for the areas are sas/graph annotate,
and are driven by values in macro variables.
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