major update to GOF chapter (chapter 5)

announcements (new versions, changes, bugs, installation problems...) related to program MARK

major update to GOF chapter (chapter 5)

Postby cooch » Wed Apr 14, 2004 1:43 pm

Greetings -

In a completely-futile-give-up-now attempt to keep up with Gary, hot on the heals of the latest addition to the GOF options in MARK, I've revised and just upload a major revision to the GOF chapter (chapter 5). It covers Gary's newest GOF approach (the median c-hat method), as well as several other things.

The good news about the median approach, besides Gary's determination that it 'seems to work pretty well' is that it works with most (if not all) models in MARK - exclusive of individual covariates. :D

The bad news is that if you run a reasonably large 'simulation space' (which will make sense to you once you've downloaded and read the chapter), your computer will weep unconsolably. :( While I don't have the hottest hardware on my desk, even the venerable (and completely overused) dipper data set took a fair bit of time (about an hour) to get the estimate of c-hat.

But, I'll trade that off against the frustrations of not being able to get an estimate of fit for the fancy models the 'smart folks' keep coming up with.

Relevant chapters (and the updated 'single file' version of the complete book) can be found at

http://www.phidot.org/software/mark/docs/book/

Enjoy.
cooch
 
Posts: 1628
Joined: Thu May 15, 2003 4:11 pm
Location: Cornell University

Postby Guest » Wed Jun 30, 2004 11:02 pm

:) good I enjoy it
Guest
 


Return to software problems/news

Who is online

Users browsing this forum: No registered users and 11 guests