turn on suggestions

Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type.

Showing results for

Find a Community

- Home
- /
- Analytics
- /
- Stat Procs
- /
- Lifereg LL stat without covariates

Topic Options

- Subscribe to RSS Feed
- Mark Topic as New
- Mark Topic as Read
- Float this Topic for Current User
- Bookmark
- Subscribe
- Printer Friendly Page

- Mark as New
- Bookmark
- Subscribe
- Subscribe to RSS Feed
- Highlight
- Email to a Friend
- Report Inappropriate Content

08-16-2016 01:47 AM

I am new here. The proc lifereg used to produce a model fit statistic (loglikelihood) without any of the covariates along the usual one with covariates. This is useful to compute a likelihood ratio or a pseudo r-squares. It seems I cannot find this now with newer version of SAS/ETS. Is there a solution for this? I cannot run the model with no covariates as I do not know what missing observations to exclude to have a match between the two runs (with and without covariates). Thank you in advance for any help.

- Mark as New
- Bookmark
- Subscribe
- Subscribe to RSS Feed
- Highlight
- Email to a Friend
- Report Inappropriate Content

08-16-2016 02:04 AM

LIFEREG belongs under SAS/Stat not SAS/ETS.

What version of SAS/Stat do you have?

- Mark as New
- Bookmark
- Subscribe
- Subscribe to RSS Feed
- Highlight
- Email to a Friend
- Report Inappropriate Content

08-16-2016 06:21 PM

Thanks for the correction. I have SAS/Stat 12.3

- Mark as New
- Bookmark
- Subscribe
- Subscribe to RSS Feed
- Highlight
- Email to a Friend
- Report Inappropriate Content

08-16-2016 08:38 PM

So I checked a couple of different version of the documentation (your welcome) and I can't see a difference in the output. That doesn't mean there isn't one, just nothing related to Log Likelihood that I can find.

Can you post sample code (and ideally sample data) that you think should generate log likelihood and a reference to what version of SAS would produce this value.

You can use the data from the documentation as sample data if your data is confidential.