[R-sig-Geo] DBF file size
Barry Rowlingson
b.rowlingson at lancaster.ac.uk
Thu Oct 14 15:37:58 CEST 2010
On Wed, Oct 13, 2010 at 9:20 PM, kapo coulibaly <kmcoulib at gmail.com> wrote:
> I'm doing Groundwater Modeling and that is the appropriate input format for
> the GUI I'm using (Groundwater vistas) for what I'm trying to do. Funny
> enough I was able to create a dbf with 512 columns in ArcGIS but as I said I
> needed more.
>
write.dbf from package 'foreign' can write bigger dbfs than 512 columns.
> d=as.data.frame(t(1:1200))
> dim(d)
[1] 1 1200
> d=rbind(d,d+1)
> d=rbind(d,d+10)
> dim(d)
[1] 4 1200
> write.dbf(d,"big.dbf")
- thats now a 1200 column x 4 row dbf file.
Reading it back with read.dbf in R gets the data back fine, but
OpenOffice stops at 1024 columns and gives an error message about too
many *rows*!
Barry
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