[R-sig-Geo] Merging shape files?

[Hannes Reuter]

Dear Zia,

1)check GDAL (www.gdal.org) using the ogr2ogr function -append as well 
as the RGDAL library out.
2)
3) -->gdal_rasterize  --> check as well the RGDAL library out. make sure 
you have a decent version of RGDAL/GDAL as I believe that the rasterize 
just came in the las two versions or so.

hannes

Zia Ahmed schrieb:
> Hi:
> I like use R for data mining, organization, manipulation and mapping of 
> SSURO data of USA. I have already done first two; I need help for 
> mapping these data.in R   It will be appreciated if someone helps me to 
> solve following three issues:
> 
> *1.       How do I merge several  shape files?*
> I like to merge several shape files to create a single shape file. All 
> files are same structure but different names and in different folders. 
> Below I mentioned how all shape files are organized in different folder. 
> I want to write a function that I can use to merge the shape files.
>  
> *File organization:*
> …/State_name/soil_ia001/spatial/file_name01.shp
> …/State_name/soil_ia003/spatial/file_name03.shp
> …/State_name/soil_ia005/spatial/file_name05.shp
> .
> . …/State_name/soil_ia21/spatial/file_name21.shp
>  
> *DBF file associated   all shape files look like below: *
>  
> ID            AREASYMBOL    SPATIALVER       MUSYM               MUKEY
> 1              IA001                    2                              
> 822D2                    402210
> 2              IA001                     2                              
> 24C2                      402161
> 3              IA001                     2                              
> 93D2                      402217
> 4              IA001                     2                              
> W                           1857266
> 5              IA001                     2                              
> W                           1857266
> 6              IA001                     2                              
> 370C                      402177
> 7              IA001                     2                              
> 570B                      402190
>                 -------
>  *
> 2.       My second question is: I like to join a table with this above 
> mentioned shape   using a conmen ID like MUKEY.  How do I do this?*
> *3.       My third question is: how do I convert this shape file to a 
> grid (as a TIFF format or others? ) that I open some other software?*
> 
> Thanks
> Zia
>  
> 
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