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st: three-level xtreg
From
Lisa Marie Yarnell <[email protected]>
To
[email protected]
Subject
st: three-level xtreg
Date
Wed, 29 Jun 2011 09:05:05 -0700 (PDT)
Hello Statalisters. My question is on three-level xtreg models.
I have seen 2-level xtreg models (e.g., time points nested within persons):
xtreg incorr spanish otherl bmi dep bmi_p50 bmi_p80 popbmi, i(aid) fe
I want to nest time points within persons within schools. I got an error message when I tried:
. xtreg incorr spanish otherl bmi dep bmi_p50 bmi_p80 popbmi, i(aid scid) fe
i(): too many variables specified
What is the code for this?
Thanks for your help,
Lisa
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