Part 10: How do you evaluate a model? · Module 25
Choosing well, and looking under the hood
How Do You Compare and Inspect Models?
When CNA hands you several candidate models, weigh them on four criteria, three statistical and one stubbornly human:
To inspect any formula's scores directly, use condTbl() , which builds a tidy summary table of consistency and coverage for whatever conditions you pass it. To probe a formula facility by facility, use condition() .
What You Will Be Able to Do
- Weigh models on simplicity, consistency, coverage, and plausibility.
- Use condTbl() and condition() to inspect a formula.
- Resist choosing a model on numbers alone.