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Re: st: Statistics with negative data


From   Nick Cox <njcoxstata@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: Statistics with negative data
Date   Tue, 11 Dec 2012 21:00:02 +0000

Negative values are not in principle a problem with any of the
specific procedures you mention. Whether other assumptions are
strained or violated will depend on other characteristics of the data.

Nick

On Tue, Dec 11, 2012 at 8:45 PM, MIGUEL ANGEL GRUPO DE INVESTIGACIO
ODONT SIMANCAS PALLARES <msimancasp@unicartagena.edu.co> wrote:

> I have some continous data to work with. Some of the observations are
> negative values. How to make appropiate statistics in Stata to deal
> with this negative values? I want to be sure that the statistics are
> correctly performed. I want to perform descriptive statistics and then
> non-parametric statistics such as t-test's and Kruskal-Wallis.
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