[Openspace] Islands in area data

[Monica Haddad]

Dear Bridgette,

You can also consider removing the island from your dataset. To do that you 
need to edit your shapefile. If you have access to ArcGIS 8.3 (ESRI), you 
can start editing (in editor extension) and choose modify features. Click 
on the island, click delete (once it is highlighted), it will disappear, 
save your editing, and end the session. After that you will have 47 
polygons instead of 48, and no island.

Hope this can help you.

Best regards,
Monica.


At 07:42 AM 4/13/2004, Coro Chasco Yrigoyen wrote:
>Hi,
>
>GeoDa can represent all kind of maps -with or without islands- only if 
>they are ESRI shape files. I suppose that you are referring to the 
>construction of contiguity weight files. In this case, I recommend you the 
>following steps.
>
>1. First I'd decide which other zip codes should be more related to the 
>islands ones: for example, in Spain, which is my case, I usually connect 
>the Balearics -an individual province- with other provinces which are 
>simmilar in terms of culture and/or economy, as they are the Catalonian 
>and Valencian ones; in the case of the Canary Islands, as they constitute 
>two Spanish provinces, they are usually interconnected each other.
>
>2. Once you've decided what to do, you should build a GAL file with the 
>help of GeoDa command.
>
>3. And afterwards, you can open this GAL file with a text processor 
>-Notepad or Ms. Word- to edit the corresponding island rows so as they can 
>be connected with the zip codes you'd decided. If you store this GAL file 
>with the text processor you can use it as usual.
>
>I expect this helps. Best regards,
>
>Coro.
>
>
>
>
>
>At 17:14 12/04/2004 -0700, Breego Lery wrote:
>>Does the latest version of GeoDa handle islands? If not, can someone 
>>please remind me how to handle it? My data set has 48 zip codes, one of 
>>which is an island.
>>
>>Bridgette
>>
>>
>>
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>Coro Chasco Yrigoyen
>Profesora Dpto. Economía Aplicada
>Directora del Área de Economía Espacial Microterritorial
>Instituto Lawrence R. Klein
>Universidad Autónoma de Madrid
>28049 Madrid
>
>Telf.: ++34 91.497.42.66
>Fax:  ++34.91.497.39.43
>E-mail: coro.chasco at uam.es
>Web:    www.uam.es/coro.chasco
>         www.uam.es/klein/microterritorial
>
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