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b_0
2008 May 07
0
Help with Mixed effect modeling in R
Hi everyone,
I want to fit the following mixed effect model
Y_ij = b_0i + b_1i * (t_ij*grp_ij == 1) + b_2i * (t_ij*grp_ij == 2) +
v_0i + v_1i*t_ij + e_ij
with a different covariance matrix of random effects for each group.
(Y is the response
t is time
grp is the group indicator
b 's are fixed effects
v 's are random effects)
I know that this is...