Re: calculating upper and lower CL using lme and glme

[Spencer Graves <spencer.graves@pdf.com>]

     Have you considered "intervals"?  The help file for 
'intervals.lme' includes an example with default 95% confidence 
intervals, but the 'levels' argument can be used to change that. 

     Hope this helps. 
     Spencer Graves
p.s.  Are you familiar with Pinheiro and Bates (2000) Mixed-Effects 
Models in S and S-Plus (Springer)?  This book provides excellent 
documentation for 'lme' and related functions as well as a solid 
discussion of the relevant theory. 

Nicola Koper wrote:
> Hi everyone,
>
> I want to use the standard errors associated with
> parameter estimates provided by lme and glme
> (correlatedData library) to calculate upper and lower
> 90% confidence limits for the parameter estimates, but
> I"m not sure how to do so with mixed models... e.g.
> calculating the t-value (@ alpha=0.1) to use in the
> calculation.
>
> I'm using Splus 6.2.
>
> Thanks alot,
> Nicky
>
> ************************************************************
>
> Dr. Nicola Koper
> Assistant Professor
> Natural Resources Institute
> University of Manitoba
>
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