while my other program is running.
The reference I mentioned previously addresses exactly this. Snijders and
Bosker's Multilevel Analysis book on page 31 and 33, section 3.6.2 and 363
discuss this.
When you say that the Xs are correlated then you would need to say according to
which struct
This is a covariance calculation question so nothing to do with R but
maybe someone could help me anyway.
Suppose, I have two random variables X and Y whose means are both known
to be zero and I want to get an estimate of their covariance.
I have n sample pairs
(X1,Y1)
(X2,Y2)
.
.
.
.
.
(Xn,Yn)
