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Bootstrapping with autocorrelated data

To: <s-news@lists.biostat.wustl.edu>
Subject: Bootstrapping with autocorrelated data
From: "Bevan Blair" <Bevan.Blair@ingeniousmedia.co.uk>
Date: Fri, 31 Oct 2003 14:46:02 -0000
Thread-index: AcOfvbUwKkoCRJJMQaSx8YeumMI6ZQ==
Thread-topic: Bootstrapping with autocorrelated data
Dear All

I am trying to bootstrap some heavily autocorrelated data. If I use the sample 
function with replace = T I lose the key feature that the data is 
autocorrelated. Any ideas how I can keep this autocorrelation and get a 
bootstrap. My only thought is to resample blocks rather than points, but this 
seems inelegant.

Cheers

Bevan

Dr Bevan Blair
Quantitative Analyst
Ingenious Asset Management
100 Pall Mall
London 
SW1Y 5NQ
United Kingdom
Tel: +44 20 7024 3677
Mob: +44 7870 684 138
bevan.blair@ingeniousmedia.co.uk

"The ills we suffer, result from mistaken beliefs about what is truly good. We 
have invested our hope in the wrong things, or at least invested it in the 
wrong way" 
Epictetus 


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