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From |
Nick Cox <njcoxstata@gmail.com> |

To |
statalist@hsphsun2.harvard.edu |

Subject |
Re: st: RE: Gini coefficient for spatial data |

Date |
Wed, 23 May 2012 10:25:16 +0100 |

Naturally, spatial data can raise serious questions in interpretation: typically aggregation or averaging acts to reduce what is measured as inequality, and it can be difficult disentangling genuine variations in inequality from artefacts of a particular level of aggregation or of a particular spatial mesh laid down like a fishing-net to catch some fish and miss others. But the calculation is the same. Nick On Wed, May 23, 2012 at 12:38 AM, Francisco Rowe <frowe@ucn.cl> wrote: > OK. Thanks again. > > On 23/05/2012, at 9:04 AM, Nick Cox wrote: > >> None of the commands know what they are receiving. The calculations >> are the same for areal data as for as data on individuals. >> >> Nick >> >> On Tue, May 22, 2012 at 11:49 PM, Francisco Rowe <frowe@ucn.cl> wrote: >>> Thanks Nick. >>> >>> Well, I rephrase my question: Can I apply the existing Stata commands -e.g. ineqdeco, inequal, sgini- to calculate the Gini coefficient using spatial data? All of the commands I mentioned seem to require as input micro data. >>> >>> What I want is to measure the degree of concentration/dispersion of different variables at the different geographical scales. >>> >>> Francisco. >>> >>> >>> On 23/05/2012, at 12:40 AM, Nick Cox wrote: >>> >>>> Ignorance is a condition treatable by computer searching. >>>> >>>> I don't know that Gini coefficients are defined differently for spatial data. However, last time I looked seriously, the name "Gini coefficient" had been applied to about four quite different measures, so you might need to say which you have in mind. >>>> >>>> More positively, -findit gini- might find what you want. Note that most if not all of the Stata functionality in this territory is user-written. >>>> >>>> Nick >>>> n.j.cox@durham.ac.uk >>>> >>>> Francisco Rowe >>>> >>>> An ignorant question: I would like to know how can I compute a Gini coefficient using spatial data, for example regional unemployment rates? >> * >> * For searches and help try: >> * http://www.stata.com/help.cgi?search >> * http://www.stata.com/support/statalist/faq >> * http://www.ats.ucla.edu/stat/stata/ > > > * > * For searches and help try: > * http://www.stata.com/help.cgi?search > * http://www.stata.com/support/statalist/faq > * http://www.ats.ucla.edu/stat/stata/ * * For searches and help try: * http://www.stata.com/help.cgi?search * http://www.stata.com/support/statalist/faq * http://www.ats.ucla.edu/stat/stata/

**References**:**st: Gini coefficient for spatial data***From:*Francisco Rowe <frowe@ucn.cl>

**st: RE: Gini coefficient for spatial data***From:*Nick Cox <n.j.cox@durham.ac.uk>

**Re: st: RE: Gini coefficient for spatial data***From:*Francisco Rowe <frowe@ucn.cl>

**Re: st: RE: Gini coefficient for spatial data***From:*Nick Cox <njcoxstata@gmail.com>

**Re: st: RE: Gini coefficient for spatial data***From:*Francisco Rowe <frowe@ucn.cl>

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