[R-sig-ME] Extracting Information from nlme ( )
bates at stat.wisc.edu
Fri Feb 18 23:38:47 CET 2011
On Fri, Feb 18, 2011 at 3:40 PM, Ben Bolker <bbolker at gmail.com> wrote:
> On 02/18/2011 04:13 PM, Jeffrey Harring wrote:
>> Is there a function or nlme object that allows one to extract the
>> standard errors of the variance/covariance parameters within nlme ( ).
>> For example, I would like to extract the SE's for the
>> variance/covariance matrix of the random effects (which is a 2 by 2). I
>> can get the actual parameters, but I am having difficulty extracting
>> these parameters SE's.
>> Any suggestions would be welcomed.
>> Thank you,
> me again ...
> You can also extract the raw information via
> In his current incarnation, Doug Bates would tell you that the sampling
I have more than one incarnation? An unexpected bonus.
> distributions of the variance-covariance parameters are so non-Gaussian
> that basing inferences on their approximate standard errors is dangerous.
> Ben Bolker
> R-sig-mixed-models at r-project.org mailing list
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