Survival Analysis
Survival analysis studies how long it may take before an event happens.
What it does
Survival analysis studies how long it may take before an event happens.
Churn: When a customer leaves • Hazard: The danger of an event
How it works
- Track when the event happens for past examples.
- Estimate the chance the event happens over time.
- Use the curve to plan before the event happens.
Uses & Applications
- A subscription app can spot customers who may cancel soon and offer help.
- A phone company can predict when batteries may need replacement.
- A hospital study can measure time until recovery or another health event.
In short
A typical use is predicting when a customer may leave.
Try it yourself
See how many subscriptions are still going
Imagine watching six subscriptions. Some end; for others, you stop watching before you know the ending.
Your turn
Change one setting at a time. Reset example puts everything back.
Estimate a survival curve
Step 1Why this happens