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Re: Maps request: EU-27 countries (spmap, shp2dta)

From   Maurizio Pisati <[email protected]>
To   [email protected]
Subject   Re: Maps request: EU-27 countries (spmap, shp2dta)
Date   Mon, 15 Nov 2010 09:59:04 +0100

I may be missing something here, but in -spmap- it's pretty straightforward to select only the polygons you want to plot: just use the standard -if/in- options. For example, using the example datasets shipped with -spmap-, you can map only the northern part of Italy as follows:

/* Open attribute dataset */
use "Italy-RegionsData.dta"

/* Full map */
spmap fortell using italy-regionscoordinates, id(id)

/* Partial map */
spmap fortell using italy-regionscoordinates if zone==01, id(id)

Best wishes,
Maurizio Pisati

Il giorno 15/nov/2010, alle ore 09.43, Niels Schenk ha scritto:

> Dear François,
> Would you please briefly summarize the method you have found in R, or
> provide a link to the information that you used? This would help me and
> possibly also other statalist members. 
> This weekend I have been struggling with the same issue that you had.
> After some searching I found out how to select one municipality from a
> national shapefile of the Netherlands. 
> My solution that worked in Stata: 
> - download and install the freeware program QGIS at
> - open the original shapefile in QGIS by adding a vector layer
> - selecting the areas you need (right click on the map, go to attribute
> table and select areas based on the attributes provided)
> - go to layer - export selection as vector file
> This gives you a shapefile that you can import into stata using
> shp2dta. 
> Best,
> Niels
> On Mon, 15 Nov 2010 00:32:42 +0100, François Briatte
> <[email protected]> wrote:
>> Dear all,
>> As a brief follow-up, I have found a way to use the shapefiles
>> mentioned below with R, in a way that produces exactly the kind of map
>> I was aiming at producing. Problem solved, then.
>> Best regards,
>> François
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