need help with complex graph

[deleted_user]

I am trying to make a graph as follows:
X= var1
Y=var2
for each var2 value I want a bar that represents var3 by var1.
I also want to break down the var3 variable:
Var3a = 0-3
Var3b = 4-7
Var3c = 7-10

and graph each of these by var1
This means that at each var2 value there will be a bar for var3a, one for var3b, and one for var3c.

Does anyone know that best sas plotting procedure to use for this and how to do it?

Thanks!

[ChrisNZ]

How does this differ from using proc gchart's subgroup= option?