Issue in performing AVG operation

[vinantip]

We tried to create our own plugin and we were trying to run pwrdaemon for pwrget operation.
The SUM operation works fine but suppose we put location parameter at any level then the AVG operation fails the sum operation still works fine.
We even tested with the DummySystem.xml file for the same and found the same issue.
We tested it with very small architecture with one platform and two nodes.
Kept location parameter at platform level as rtr0 where rtr0 is the router.
The SUM operation works fine but AVG operation fails.
Please check let us know if we are missing something.