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st: svy:tab - deriving CIs with BRR


From   Alan Diener <[email protected]>
To   [email protected]
Subject   st: svy:tab - deriving CIs with BRR
Date   Thu, 18 Jan 2007 16:16:10 -0500

(thanks for the suggestion Maarten - your example did work for me)

I now realize that the problem occurs when using BRR and bootstrap weights.
The data set which I am using does not have strata or PSU info.  I also
tried it using nhanes2brr and I was not able to obtain the SEs or CIs.

I have tried to use both of the following commands and some variants:
. svy: tab var1 var2, row se ci
. svy brr: tab var1 var2, row se ci

Neither method has produced the standard errors or confidence intervals. I
am able to get the estimates by using the proportion command and subpop,
but the output is not as clear as that produced by the tab command.


------------------------------------------------------------------------------------------------------------------------------------

Date: Wed, 17 Jan 2007 16:46:07 +0100
From: "Maarten Buis" <[email protected]>
Subject: st: RE: problem with svy:tab

- --- Alan Diener wrote:
> When I try to do two-way tabulations using the svy commands, I am not
able
> to get the standard errors and confidence intervals to appear in the
> output.  I have used the command line below as specified in the Survey
Data
> manual but it doesn't appear to be working properly. Any suggestions?
>
> . svy:  tab var1 var2,  row se ci

Weird. I ran the following two commands and it did produce standard errors:

webuse nhanes2 /*load an example dataset*/
svy:  tab sex heartatk,  row se ci

Do these two commands work in your Stata?

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