[R-sig-Geo] Lisa Map Results

[Roger Bivand]

On Sun, 15 Jan 2012, Angelo Moreno wrote:

> Hi, I Have the Lisa Map,and I have done it with the information of a 
> list of cities,I`d like to know if I Can get a list or a table of the 
> results of the quadrants, for example something like this:

Please do be specific, and include code using built-in data sets to 
illustrate your question. The term Lisa Map is not clear - do you mean a 
choropleth (thematic) map of the estimates of local Moran's I, or Geary's 
C, or Getis' G, or what?

If you look at your references, you'll probably find that high and low are 
values above or below the mean of the variable of interest and its spatial 
lag for some set of weights. If so, you should be able to provide the code 
example, say using the supplied afcon data set in spdep. Your choice of 
weights and criterion for splitting the distributions will impact your 
result. If you adjust the p-values of the local indicators for multiple 
comparisons, probably none of them will be significant, I'm afraid.

Roger

>
> High-High   High-Low  Low-High    Low-Low
>
> City 1         City2          City4         City7
> City3          City5          City 6        City8
>
>
> Thanks ! ;)
>
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-- 
Roger Bivand
Department of Economics, NHH Norwegian School of Economics,
Helleveien 30, N-5045 Bergen, Norway.
voice: +47 55 95 93 55; fax +47 55 95 95 43
e-mail: Roger.Bivand at nhh.no