3. The method of claim 1 , wherein generating the report further comprises: projecting the event data into one or more attributes or attribute/value pairs; and determining statistics on other attributes using a combination of the index and the attribute co-occurrence data structure.
3. The method of claim 1 , wherein generating the report further comprises: projecting the event data into one or more attributes or attribute/value pairs; and determining statistics on other attributes using a combination of the index and the attribute co-occurrence data structure. 5. The method of claim 3 , wherein the statistics are determined using statistical functions.