6.5 Summary

• Create a Common Interface - All models are comprised of some core components
  • mathematical model
  • engine implementation
  • mode if needed
  • Arguments
    • Main - algorithm specific (trees, mtry, penalty)
    • Engine - Package/Engine specific (e.g. verbose, num.threads, …)
• Predictable Behavior
  • tibble in, tibble out
  • same number of observations returned for predict()