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op_or
2008 Jan 25
1
Trouble setting up correlation structure in lme
Hi, I'm trying to set up AR(1) as a correlation structure in modeling some
data (attached file data.txt in text format) with lme, but have trouble
getting it to work.
Incent, Correctness, and Oppor are 3 categorical variables, Beta is a
response variable, and Time is an equally-spaced variable with 6 time points
(treated as a categorical variable as well). Basically I want to model the
correlation with AR(1) or even ARMA along those 6 time points. First, how is
the order determined among the...