I haven't been able to find an example of this, or any indication in the docs of how to do this, but I would imagine it is possible.
I want to chart some data that is hierarchical. Essentially each parent has a few children. I want the children to be clustered columns inside a big column which indicates the parent (which is the sum of all the children) I found this example image which kinda shows what I am thinking of: http://peltiertech.com/images/2009-02/MariBar_OverlapColumns.png Thanks!
