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Re: st: saving the confidence interval as a scalar


From   Dixie Fisher <[email protected]>
To   "[email protected]" <[email protected]>
Subject   Re: st: saving the confidence interval as a scalar
Date   Thu, 28 Jul 2011 20:40:48 -0700

Sent from my iPad

On Jul 28, 2011, at 2:56 PM, Steven Samuels <[email protected]> wrote:

> 
> Michael, try the following:
> 
> *****************************************
> sysuse auto, clear
> svyset rep78 [pw = turn]
> svy, subpop(if foreign==0): total trunk
> matrix b = e(b)
> scalar tot = b[1,1]
> matrix v=e(V)
> scalar v =v[1,1]
> scalar bound =  ///
> sqrt(v)*invttail(e(df_r),0.5*(1-c(level)/100))
> scalar  ll = tot-bound
> scalar  ul = tot + bound
> di  c(level) "% Confidence Interval" _newline ///
> "Estimate: " %8.0fc  tot ///
> " ["%7.0fc  ll "," %8.0fc  ul "]"
> ******************************************
> 
> On Jul 28, 2011, at 12:12 PM, Monuteaux, Michael wrote:
> 
> Hello everyone,
> 
> I am estimating various parameters using a survey dataset.  I am running the following command:
>    svy: total myvar, subpop(adults)
> I am able to save the point estimate as a scalar using the saved matrix, e(b).  But, I would like to also save the upper and lower confidence interval bounds as scalars, as well.  Is it possible to access these values as scalars or a matrix?
> 
> 
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