Click here to see the SAS code.
Click here to see the example.
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This chart has some fundamental drawbacks... namely the *area* of each color
is not proportional to the percentage.
To create this custom graph, I start with a very wide subgrouped bar chart,
and then I cover pieces of the left & right side (using annotated polygons)
to make the visible part of the bar look like a funnel. I then annotate
lines and labels for each bar segment.
I'm using 1 v9.2 feature here - in v9.2 the ods styles have new default
color lists associated with them, and I'm just letting the graph use
these default colors. If you run it using pre-v9.2 sas, then you'll
get the basic/primary default colors (red, green, etc) and you'll
have to specify pattern statements to get nice-looking colors.
It's not the most statistically valid chart, but it was something a customer
was wanting, therefore I wanted to show SAS/Graph could do it :)
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