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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