We have set up subjects within each course that each have multiple skills. We would like for the subject grade to be a trend of all events added within that subject. Right now it is set up so that each skill gets a trend rating and if we choose to grade the subject it is an average of each of the skill ratings.

This would allow teachers to report trend ratings by skill or by skill grouping and all events entered would have an equal weight. The power law calculation would not need to change it would just be applied to the subject such that all events entered within that subject would be used for the calculation.