Dominic
Dominic
> In your data, there are tied event and censoring times. The Cox Proportional Hazards model doesn't naturally deal with ties. `lifelines` uses Efron's method to handle ties, while SAS...
> 👍 [@pzivich](https://github.com/pzivich) is exactly right. There are no plans to support other tie methods at this time. Thank you.
> To my knowledge, `lifelines` only supports Efron's method. The exact method is pretty computationally intense to do, and usually not feasible to run unless there are only a few...