Business Survival Analysis Using SAS

Chapter 7: Statistics for Performance and Validation

Introduction

Twofold Focus

SAS Enterprise Miner for Practical Solutions

Comparison of Model Validation Approaches

Validation: An Explanation

Traditional Logistic Regression

Survival Regression (Steps 1 through 4)

Statistics for Performance and Validation

Step 5: Compute the Hazard for Only the First Month of the Period

Step 6: Create a Hit Variable Indicating Whether Repurchase Occurs in January

Step 7: Compute the Depth of the Hazard in Quantiles

Step 8: Compute the Sensitivity

Step 9: Create the Concentration Curve

Step 10: Compute Lift

Step 11: Create the Lift Curve

Step 12: Compute Benefit

Step 13: Create the Benefit Curve

Step 14: Select the Cutoff=Depth Where the Benefit Is Maximum