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RE: st: Xtmixed from SAS to Stata
Perfect!
The results it's correct....even if Stata gives me a Z test while I need F test.
Anyway thanks a lot
Paola
-----Original Message-----
From: [email protected] [mailto:[email protected]] On Behalf Of Joseph Coveney
Sent: marted� 30 gennaio 2007 14.45
To: Statalist
Subject: Re: st: Xtmixed from SAS to Stata
Paola Di Stefano wrote:
I need to translate this procedure from SAS to Stata:
proc mixed;
class numero;
model bnp=dte / noint s;
repeated / subject=numero r;
run;
--------------------------------------------------------------------------------
Here's a stab at it:
xtmixed bnp dte, noconstant || numero:
dte's absence from the CLASS statement indicates that it's continuous. (It seems odd not to want an intercept in such a model.) I believe the default variance-covariance structure for the REPEATED statement is variance components, so dte won't appear in the random effects equation as a random slope.
Joseph Coveney
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