[R-sig-ME] "pdCompSymm" function in R package "nlme"

[Isaac Kookhyun Yoo]

Dear all,

I am a graduate student. I have a question about pdCompSymm.
pdCompSymm can be used for compound symmetry matrix only (All the variances
are equal and all the covariances are equal.)

Are there any functions for unequal variances or unequal covariances matrix?

Thank you in advance.

Isaac

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