topic Re: Life Distribution - How to Enable Left censor? in Discussions

Life Distribution - How to Enable Left censor?

YK-Chang — Fri, 12 May 2023 02:53:55 GMT

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

Re: Life Distribution - How to Enable Left censor?

David_Burnham — Fri, 12 May 2023 13:56:55 GMT

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.

Re: Life Distribution - How to Enable Left censor?

Ross_Metusalem — Wed, 17 May 2023 12:49:15 GMT

@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.