Perhaps you could follow the instructions from this
exchange<http://r-sig-geo.2731867.n2.nabble.com/Guam-island-map-td4969467.html#a4972725>and
see if you can extract the desired country (assuming the resolution
suits you).


Cheers,
Roman



On Sat, Dec 18, 2010 at 6:20 PM, Dorina Lazar <drnlazar@yahoo.com> wrote:

> Georg,
>
> Thanks for being very patient with me.
>
> I have not a shapefile for countries.
>
> I have tried to obtain it. I have loaded a shapefile for Finland, GIS data,
> from
> http://www.eea.europa.eu/data-and-maps/data/eea-reference-grids/zipped-shape-file-finland
>
> and I tried to read the file FI_1K.shp
> Fin<- readShapePoly(system.file("etc/shapes/ FI_1K.shp", package="spdep"))
> but...
> Error in getinfo.shape(filen) : Error opening SHP file
>
> How can I obtain, for each country,  the shapefile spatial polygon in R
> (SpatialPolygons-DataFrame)?
>
> Thanks again,
> Dorina
>
>
> --- On Thu, 12/16/10, Georg Ruß <research@georgruss.de> wrote:
>
> > From: Georg Ruß <research@georgruss.de>
> > Subject: Re: [R-sig-Geo] spatial clusters
> > To: "Dorina Lazar" <dorina.lazar@econ.ubbcluj.ro>
> > Cc: "R-sig-geo mailing list" <r-sig-geo@r-project.org>
> > Date: Thursday, December 16, 2010, 10:41 AM
> > On 16/12/10 09:06:33, dorina.lazar
> > wrote:
> > > How to create a shapefile including my data about some
> > socio-demographic
> > > indicators (7),  for about 30 countries around
> > the world (to be read with
> > > readShapePoly)?
> >
> > Hi Dorina,
> >
> > I'm not quite sure what you have and what you want.
> >
> > I assume that you'd like to create a shapefile such that
> > for every country
> > (which is represented as a polygon) there's a vector of
> > seven attributes
> > attached to it:
> >
> > country1:  attr1 attr2 attr3 attr4 attr5 attr6 attr7
> > country2:  attr1 attr2 attr3 attr4 attr5 attr6 attr7
> > ...
> >
> > Do you have your countries as spatial polygons in R
> > (SpatialPolygons-
> > DataFrame or similar)? If yes, you should be able to add
> > your socio-demo-
> > graphic indicators to this data frame (just as in normal
> > data frames). In
> > this way you'd join the data you have inside R.
> >
> > If you have the shapefile for the countries available and
> > would like to
> > edit this directly to add the indicators, I'd suggest using
> > a GIS like
> > GRASS http://grass.fbk.eu/ Afterwards, this can be easily
> > read into R.
> >
> > > Would be useful to suggest some good introductory
> > lectures in spatial
> > > statistics (links or books).
> >
> > I think the following is what Roger would suggest:
> >
> >  author = {Bivand, Roger S. and Pebesma, Edzer J. and
> > Gómez-Rubio, Virgilio},
> >  title = {Applied Spatial Data Analysis with R},
> >  series = {Use R},
> >  publisher = {Springer},
> >
> > http://www.asdar-book.org/
> > http://www.springerlink.com/content/uw07v1/
> > (Depending on your login/institute you may have fulltext
> > access, but the
> > book is definitely worth buying anyway.)
> >
> > Regards,
> > Georg.
> > --
> > Research Assistant
> > Otto-von-Guericke-Universität Magdeburg
> > research@georgruss.de
> > http://research.georgruss.de
> >
> > _______________________________________________
> > R-sig-Geo mailing list
> > R-sig-Geo@r-project.org
> > https://stat.ethz.ch/mailman/listinfo/r-sig-geo
> >
>
>
>
>
> _______________________________________________
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>



-- 
In God we trust, all others bring data.

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