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Re: st: Identifying regions within a cross-section with Stata


From   "Erasmo Giambona" <e.giambona@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: Identifying regions within a cross-section with Stata
Date   Thu, 11 Oct 2007 13:03:21 -0400

Dear Nick and Sergy,
Thanks very much for your suggestions.
Erasmo

On 10/11/07, Sergiy Radyakin <serjradyakin@gmail.com> wrote:
> Hello Erasmo,
>
> you may want to have a look at cluster analysis, which is a scientific
> way of separating data into clusters of "similar" objects. Some of the
> methods will automatically choose the number of clusters based on your
> data. Note that it will be increasingly hard to plot the data if you
> come from 2 dimensions to higher dimensions, so graphical
> representation might not be as convincing as formal analysis. Stata is
> capable to perform some of the standard cluster analysis procedures.
>
> Best regards,
>   Sergiy Radyakin
>
>
> On 10/10/07, Erasmo Giambona <e.giambona@gmail.com> wrote:
> > Dear Statalisters,
> >
> > I have a cross section of firm-level data. If I plot the data
> > according to firm debt and growth opportunities, it seems that the
> > data is separating into 2 distinct regions. In the first region there
> > are firms with very low debt and high growth and in the second region
> > firms with very high debt and low growth. Is there a test to check
> > whether indeed there is separation in the data? Is there a way to
> > handle this with inregression?
> >
> > Any suggestions would be appreciated.
> > Erasmo
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