hope this helps. spencer graves
Thomas Lumley wrote:
On Tue, 3 Aug 2004, Jacob Wegelin wrote:
The print method for lme *prints out* the fitted correlation matrix for the random effects. Is there any way to get these values as an object in R? I have examined the components of the lme object (called "junk" in the example below) and the components of summary(junk) without finding these numbers.
(How I did this: I dumped the entire lme object to a text file and then used egrep to search the text file for one of the long strings of digits that are in the printout. The string was not in the file. It appears that the print method computes the fitted correlation matrix on the fly?? Or where does it get it?)
It's remarkably complicated. If you look at getS3method("print","lme") you see that it comes from print(summary(x$modelStruct), sigma=x$sigma) You then look at what the class of x$modelstruct is > class(fm1$modelStruct) [1] "lmeStructInt" "lmeStruct" "modelStruct" and look at getS3method("print","lmeStructInt"), which doesn't exist. You then try lmeStruct, with no luck, and then getS3method("print","modelStruct")
After a lot more chasing through methods you find that the correlation matrix is computed by the generic function pdMatrix. You probably want to look at getS3method("pdMatrix","pdSymm") and getS3method("pdMatrix","pdMat")
And all this may well change when Doug finishes lme4.
-thomas
______________________________________________
[EMAIL PROTECTED] mailing list
https://www.stat.math.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
______________________________________________ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
