[R] mapping data to a geographic map of Europe

paladini at trustindata.de paladini at trustindata.de
Fri Nov 1 18:04:18 CET 2013

Hi Jean,
thanks again for your response. As I told you  I did the downloads and  
double checked if I selected the right directory.
But I noticed right now what happend:
The command in the example is :
eurMap <- readShapePoly(fn="NUTS_2010_60M_SH/Shape/data/NUTS_RG_60M_2010")

But it should be :
eurMap <- readShapePoly(fn="NUTS_2010_60M_SH/data/ggg/NUTS_RG_60M_2010")

Because if you do the downloads and unzip these data there is no such  
think as a "Shape" directory.

Now eurMap <- readShapePoly(fn="NUTS_2010_60M_SH/data/NUTS_RG_60M_2010")

What happens now is that after typing:
eurEduMapDf <- merge(eurMapDf, eurEdu, by.x="id", by.y="GEO")
I get another error message because "eurMapDf" is unknown.

So I supposed it should be:
eurEduMapDf <- merge(eurMap, eurEdu, by.x="id", by.y="GEO")

But this doesn't work either.The error message this time is: undefined  
column selected.

Did I do something wrong?

Best regards


Zitat von "Adams, Jean" <jvadams at usgs.gov>:

> Claudia,
> You should cc r-help on all correspondence so that others can follow the
> thread.
> In the second paragraph of the link I sent you
>      http://www.r-bloggers.com/maps-in-r-choropleth-maps/
> a link is provided for the NUTS data,
>      "The polygons for drawing the administrative boundaries were obtained
> from this link. In particular, the NUTS 2010 shapefile in the 1:60 million
> scale was downloaded and used. The other available scales would allow the
> drawing of better defined maps, but at a computational cost. The zipped
> file has to be extracted in a folder of choice for using it later."
> http://epp.eurostat.ec.europa.eu/portal/page/portal/gisco_Geographical_information_maps/popups/references/administrative_units_statistical_units_1
> If you want to follow the example, you will need to download this data to
> your computer and then make sure that you refer to the appropriate
> directory when using the readShapePoly() function.
> Jean
> On Wed, Oct 30, 2013 at 11:14 AM, <paladini at trustindata.de> wrote:
>> Hi Jean,
>> thank you for your advice.
>> The page looks quite interesting and I tried the example in  GNU R. I did
>> all the downloads.
>> But
>> Just in the beginnig after typing
>> eurMap <- readShapePoly(fn="NUTS_2010_**60M_SH/Shape/data/NUTS_RG_60M_**
>> 2010")
>> I get the following error message:
>> Error in getinfo.shape(filen) : Error opening SHP file
>> To you have an idea what I did wrong?
>> Thanks a lot and best regards
>> Claudia
>> Zitat von "Adams, Jean" <jvadams at usgs.gov>:
>>  Check out this link for some examples
>>> http://www.r-bloggers.com/**maps-in-r-choropleth-maps/<http://www.r-bloggers.com/maps-in-r-choropleth-maps/>
>>> Jean
>>> On Tue, Oct 29, 2013 at 12:02 PM, <paladini at trustindata.de> wrote:
>>>  Hello,
>>>> I would like to draw a map of Europe. Each country should be colored
>>>> depending on how it scores in an index called GPIndex.
>>>> Say a dark red for real bad countries a light red for those which are not
>>>> so bad, light blue for the fairly good ones and so on up to the really
>>>> good
>>>> ones in a dark blue.
>>>> I never worked with geographic maps before so I tried library maps but I
>>>> didn't get far,- especially because all examples I found only seem to
>>>> work
>>>> for the United states. So I'm a bit lost.
>>>> I would be nice if somebody could help me.
>>>> Thanking you in anticipation!
>>>> Best regards
>>>> Claudia
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