Hello, i would be greatful for a hint for a following problem here in cooccurrence analysis. It may be not most practical one but it appeared in the test.
The problem is that LLR tests for independence. As such, it would give high scores for negatively correlated events too. E.g. say countA = 91, countB=91, countA&B=1, total = 213 produces sky-high llr of 139.33. However, in this situations these events avoid each other (something we are not looking for) rather than highly likely to co-occur (somethng we are looking for). Is there a quick test to filter out negatively co-occuring events? thanks. -d
