Business Survival Analysis Using SAS

Chapter 2: Exploratory Data Analysis and Basic Statistical Concepts

Introduction

Overview of Continuous and Discrete Distributions

Deciding Whether to Use Continuous Time or Discrete Time

Understanding the Concept of a Customer Tie

Continuous Distribution

Survival Function for Continuous Time

Hazard Function for Continuous Time

Discrete Distribution

Data Formats

Customer-Level Data Set (Standard Data Format)

Calculation of the Discrete Hazard—An Example

Interpretation of the Results

Month Data Set (Expanded Data Format)

Creation of Dummy Variables

A Simple Example

A Time-to-Next-Purchase Example

PROC LOGISTIC to Compute Hazard

Odds Calculation (January)

Hazard Calculation (January)

Survival Function

Hazard and Survival Relationship

Summary of ...