Part 10: How do you evaluate a model? · Module 24
Coverage: how much of the outcome does the pattern explain?
What Is Coverage (the Score)?
The second score is coverage , an evaluation measure that you should not confuse with vaccination coverage. It answers: of all the facilities that had the outcome, what share does this pattern account for?
If 90 of 100 low-coverage facilities fit your pattern, the coverage score is 0.90 . A lower score isn't automatically bad. It often just means other roads to the same problem exist, which is equifinality saying hello. You set the threshold with the cov argument, and its default is also 1.
What You Will Be Able to Do
- Define coverage as a model-fit measure.
- Keep CNA-coverage and vaccination-coverage straight.
- Set the cov threshold sensibly.