Dear all:

A is a four level variable (from 1 to 4). the statement y~(1|A) supposes
different levels of A are independent. How to make a special structure to
the correlation of different level of A ? eg. A follows AR(1) structure
(a_ij=\rho^{|i-j|} between level i and level j). I know SAS can define such
structure. But I don't know how to do it in lmer().

Best Regards,
Bob Huang

	[[alternative HTML version deleted]]


