## Survival Analysis part 4: Cox PH modelling

Here we demonstrate a standard semi-parametric regression method to create a model of harddrive failures. This model can be tested for accuracy and used for prediction.

Survival analysis is long-established within actuarial science but infrequently used in general data science projects. We explain more with worked examples.

We now have a clean, prepared, real-world dataset regarding the failures of thousands of harddrives, lets see what we can learn from a basic survival analysis.

We've reviewed the basic theory of survival analysis and discussed why it's a useful technique; now lets acquire, explore and prepare a real dataset for analysis.

In this series of blogposts we'll explain tools & techniques of dealing with time-to-event data, and demonstrate how survival analysis is integral to many business processes.