Notice: On April 23, 2014, Statalist moved from an email list to a forum, based at statalist.org.
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
st: AW: confidence intervals, saved results, pweights
From
"Martin Weiss" <[email protected]>
To
<[email protected]>
Subject
st: AW: confidence intervals, saved results, pweights
Date
Sat, 17 Jul 2010 17:29:41 +0200
<>
Try Roger`s -ssc d parmest-:
*************
capture which parmest
if _rc ssc install parmest
webuse fpc, clear
svyset [pw=weight]
svy: mean x
parmest, saving(myfile, replace)
u myfile, clear
l
*************
HTH
Martin
-----Ursprüngliche Nachricht-----
Von: [email protected]
[mailto:[email protected]] Im Auftrag von Ben Zipperer
Gesendet: Samstag, 17. Juli 2010 17:24
An: [email protected]
Betreff: st: confidence intervals, saved results, pweights
confidence intervals of variable means in survey data with pweights.
As I understand it, -svy: mean- will show the confidence interval, but
only returns the variance and mean in its e() results. Is it
recommended that I simply use these e() results to calculate my own
confidence interval (to match the one reported but not saved by -svy:
mean-), or is there a command like -ci- that saves as macros the
confidence interval results with pweighted survey data?
Additionally, after -svy: mean- why can I display the elements of some
variance matrices but not others? For example,
. webuse fpc, clear
. svyset [pw=weight]
pweight: weight
VCE: linearized
Single unit: missing
Strata 1: <one>
SU 1: <observations>
FPC 1: <zero>
. svy: mean x
(running mean on estimation sample)
Survey: Mean estimation
Number of strata = 1 Number of obs = 8
Number of PSUs = 8 Population size = 27
Design df = 7
--------------------------------------------------------------
| Linearized
| Mean Std. Err. [95% Conf. Interval]
-------------+------------------------------------------------
x | 5.448148 .723725 3.73681 7.159486
--------------------------------------------------------------
. di el(e(V_srs),1,1)
.54734078
. di el(e(V),1,1)
matrix operators that return matrices not allowed in this context
thanks,
Ben
*
* 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/
*
* 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/