Hi Zia, I suggest you give a look o GRASS.
bests miltinho On Tue, Jan 19, 2010 at 6:59 PM, Zia Ahmed <z...@cornell.edu> wrote: > 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 > > > _______________________________________________ > R-sig-Geo mailing list > R-sig-Geo@stat.math.ethz.ch > https://stat.ethz.ch/mailman/listinfo/r-sig-geo > > [[alternative HTML version deleted]]
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