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st: boostrap with stata (elementary question)


From   "Roys, Nicolas A." <[email protected]>
To   <[email protected]>
Subject   st: boostrap with stata (elementary question)
Date   Wed, 17 Aug 2005 17:28:51 -0400

(sorry for the last mail)
 
Hi everybody,
 
I want to bootstrap the variance of the standard deviation of "ice" and the standard deviation of "ich"
so I think the stata command is simply :
bs "summarize ice, detail" "r(sd)", rep(1000)
bs "summarize ich, detail" "r(sd)", rep(1000)
but how can I can bootstrap the variance of the ratio 
standard deviation of "ice" divided by standard deviation of "ich" ?
 
thanks a lot
 
nicolas
 

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