Statalist


[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

st: Re: correlation for longitudinal data


From   José Maria Pacheco de Souza <[email protected]>
To   <[email protected]>
Subject   st: Re: correlation for longitudinal data
Date   Mon, 20 Jul 2009 11:06:07 -0300

<>
Dear people:
maybe extending the question of Ricardo -
I am running xtmixed for growth curves of z escores according ages 6-6 7-6 8-6 9-6 ... months and would like to get the correlation/covariance matrix of the observed and modeled z. Is it possible directly from the -long- data set?
Thanks for any help.
José Maria
Jose Maria Pacheco de Souza, Professor Titular (aposentado)
Departamento de Epidemiologia/Faculdade de Saude Publica, USP
Av. Dr. Arnaldo, 715
01246-904  -  S. Paulo/SP - Brasil
fones (11)3061-7747; (11)3768-8612;(11)3714-2403
www.fsp.usp.br/~jmpsouza
----- Original Message ----- From: "Ricardo Ovaldia" <[email protected]>
To: <[email protected]>
Sent: Monday, July 20, 2009 10:51 AM
Subject: st: correlation for longitudinal data



Dear all,

Is there a way to estimate a correlation coefficient of two continuous measurements each collected over time on a sample of patients? Not sure if I can do this with -xtreg- for example.

Thank you,
Ricardo


*
*   For searches and help try:
*   http://www.stata.com/help.cgi?search
*   http://www.stata.com/support/statalist/faq
*   http://www.ats.ucla.edu/stat/stata/



© Copyright 1996–2024 StataCorp LLC   |   Terms of use   |   Privacy   |   Contact us   |   What's new   |   Site index