Stata The Stata listserver
[Date Prev][Date Next][Thread Prev][Thread Next][Date index][Thread index]

st: svyreg with missing values in predictors or outcomes


From   Takahiro Higashi <taka@ucla.edu>
To   <statalist@hsphsun2.harvard.edu>
Subject   st: svyreg with missing values in predictors or outcomes
Date   Mon, 03 Mar 2003 23:14:42 -0800

I understand that if predictor variables or outcome variable of a svyreg model have missing values, STATA will drop the observations from the model estimation. (calculation of beta coefficients)
How does it affect the variance estimation? Can this cause the singleton PSU problem? If so, should I fill in the missing values with some arbitrary values and also set the weights for the observations to zero or use subpop() option after creating a new variable indicating which observations have no missing values.
Thanks.

Takahiro Higashi
UCLA Div. of General Internal Medicine

*
* For searches and help try:
* http://www.stata.com/support/faqs/res/findit.html
* http://www.stata.com/support/statalist/faq
* http://www.ats.ucla.edu/stat/stata/




© Copyright 1996–2014 StataCorp LP   |   Terms of use   |   Privacy   |   Contact us   |   What's new   |   Site index