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Re: st: Trimming data and statistics

From   Maarten buis <[email protected]>
To   [email protected]
Subject   Re: st: Trimming data and statistics
Date   Fri, 14 Apr 2006 22:21:11 +0100 (BST)

I am not surprised that the middel observation (median) moves if you remove the bottom 5% and the
top 10% of a distribution. The problem is how to justify it.

--- Akihito Tokuhara <[email protected]> wrote:
> The fact is, when I test-trim the dataset, the median actually 
> moves away from zero.

--- Akihito Tokuhara <[email protected]> previously wrote:
>> My way if to cut off completely all obs having values less than p5 and all
>> those having values bigger than p90.

Maarten L. Buis
Department of Social Research Methodology
Vrije Universiteit Amsterdam
Boelelaan 1081
1081 HV Amsterdam
The Netherlands

visiting adress:
Buitenveldertselaan 3 (Metropolitan), room Z214

+31 20 5986715

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