Displaying 2 results from an estimated 2 matches for "cavariance".
2005 Jun 28
1
How to extract the within group correlation structure matrix in "lme"
...f = lme(y ~x0+x1+trt+tim+x1:tim +tim:trt,random=~-1|subj, data=dat,corr =corAR1())
> f$sigma
[1] 2.330854
b=summary(f)$modelStruct$corStruct
> b
Correlation structure of class corAR1 representing
Phi
0.8518711
I think 0.8518711 and f$sigma is what I need to reconstruct the variance-cavariance matrix. So, How can I extract 0.8518711 so that I can assign it to a variable? Also, I don't understand what the following parameters estimates mean?
>summary(f)$modelStruct
reStruct parameters:
subj
-20.15833
corStruct parameters:
[1] 2.525869
I appreciate your time on this....
2011 May 05
0
Summer Internship for Wine Business Students
Nomadica Brainstorming has a summer intern position for its Barcelona, Spain offices. Not far from dozens of wineries and "cavaries". We have a high tech product in the works for the wine industry and want a creative business person to help us work out all the gyrations of this new business model. This might lead to a full time position in Spain or in the US where we have bases.
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