Hi All
Just wanted to share this with everybody that recently we have done some graphical chart based reports for quizzes and courses at user level.
Here are some of the images..
How it was done
a) basically, we took an approach of creating lib files
b) then incorporate the data flow from UI to moodle
c) It is done very clean as in no impact on moodle core code.
d) for charts we have used google chart functionality