cancel
Showing results for 
Show  only  | Search instead for 
Did you mean: 
  • New to JMP? Join us Sept. 23-24 for the Early User Edition of Discovery Summit, tailor-made for new users. Register now for free!
  • Use World Cup data to build models, explore spatial relationships, and create informative visualizations in JMP. Register. July 17, 2 pm US Eastern Time.
  • Your voice matters! Tell us how you prefer to receive JMP updates, so we can tailor our communication to your needs. Take short survey.

Discussions

Solve problems, and share tips and tricks with other JMP users.
Choose Language Hide Translation Bar
YK-Chang
Level I

Life Distribution - How to Enable Left censor?

Hi,

 

I am working on the life distribution analysis, and I can only enable the data to right censor using censor column (censor code=1).

But I had some data needed to be "left-censored" but I don't know how to enable left censor.

 

Thanks in advanced!

Yu-Kai

2 REPLIES 2
David_Burnham
Super User (Alumni)

Re: Life Distribution - How to Enable Left censor?

I think this is how you do it:

 

1. Organise the data with separate columns for start and end times.  If the end time is missing it denotes right-censored data, if the start time is missing it denotes left-censored data.

 

2. Launch the Life Distribution platform and assign both the start and end columns as the "Y,Time to Event" role.

-Dave

Re: Life Distribution - How to Enable Left censor?

@David_Burnham is correct. Using two time-to-event columns also is how one would specify interval censoring. See this documentation page for an example.

Ross Metusalem
JMP Academic Ambassador

Recommended Articles