Exercise

Fixing problems with model diagnostics

You can use gam.check() to improve models by updating them based on its results.

Instructions

100 XP

Run the model diagnostics on mod.
Based on the diagnostics, re-fit the model as mod2, changing the number of basis functions (k) for failing smooths.
Run the model diagnostics on mod2 to ensure you have fixed the issue.

Take Hint (-30 XP)