Use the text field to specify
random effects
by which to model the
covariance
structure of the response
variable
.
Random effects are typically comprised of
class variables
and their interactions.
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If you specify more than one random effect, then you must separate the effects with
spaces
. For example, assuming
A
and
B
are listed as Class Variables, typing
A B
in the text field specifies variables
A
and
B
as random effects.
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