Dear Statalist,
A student came in with an -areg- model in which the same variable was
used in both the absorb option and cluster option, sorta like this
areg dv iv1 iv2, absorb(id) cluster(id)
I thought this was a bad idea but could not find a specific reference
prohibiting it. Can someone point me to a reference about the
problem or provide an explanation of why it is not a problem.
Phil
--
Phil Ender
UCLA Department of Education
UCLA Academic Technology Services
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