GEE correlation
Write to the package maintainer or the author to ask about this. Kasper
On Mar 26, 2008, at 6:02 PM, Cameron Redsell-Montgomerie wrote:
I am currently writing a paper comparing various packages in different programs, and how they handle GEE. I was wondering if you could help me out a bit. Beyond the options included in each package, I've noticed a variance in the various estimates and standard errors for most working correlation options between packages. The most is observed in Unstructured, and none in independence obviously. From what I've been able to gather the difference is coming from how the working correlations are calculated. I'm betting it's coming from the residuals being used. SAS for instance uses the Pearson Residuals. I was wondering if you could tell me how geepack or gee calculates correlation. Could you also include full citation for yourself so I can properly cite you, Thank you Very Much, Cameron Redsell-Montgomerie MSc Statistics University of Guelph MACN rm:501 credsell at uoguelph.ca [[alternative HTML version deleted]]
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