Re: st: Books on clustering

["Michael Blasnik" <michael.blasnik@verizon.net>]

...
No, they aren't the same.  Cluster analysis is a statistical method (or 
methods) that seek to identify clusters in a dataset based on some measure 
of the distance between observations.  In contrast, the analysis of 
clustered data (e.g., through the cluster() option in a Stata command) can 
arise a wide variety of problems and refers to known groupings in the data 
where often you are looking to adjust standard errors to account for the 
lack of independence in the observations within each group.

Michael Blasnik

----- Original Message ----- 
From: "Joe Trubisz" <jtrubisz@mac.com>
To: <statalist@hsphsun2.harvard.edu>
Sent: Tuesday, October 03, 2006 4:12 PM
Subject: Re: st: Books on clustering



> OK...I plead ignorance here.
> Isn't the 'analysis of clustered data' the same as 'cluster analysis'?
>
> Joe
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