Hi all,
I am trying to merge ICES divisions polygons by subareas i.e. division
IVa, IVb and IVc in the shapefile and I want to obtain IV (IVa+IVb+IVc).
To realize that I thought to use the function unionSpatialPolygons().
Is that a good choice?
If yes, I tried to apply it and obtained the error
"isTRUE(gpclibPermitStatus()) is not TRUE".
I therefore try to find more information about the use of this
function and download the following example:
http://www.nceas.ucsb.edu/scicomp/usecases/PolygonDissolveOperationsR
Unfortunately I get the same error and I really don't understand how
it coudl be as I am using the example script. Maybe something is wrong
with my R configuration?
Thank you very much for your help,
Best,
Xochitl C.
R.Version()
$platform
[1] "i386-w64-mingw32"
$arch
[1] "i386"
$os
[1] "mingw32"
$system
[1] "i386, mingw32"
$status
[1] ""
$major
[1] "2"
$minor
[1] "15.3"
$year
[1] "2013"
$month
[1] "03"
$day
[1] "01"
$`svn rev`
[1] "62090"
$language
[1] "R"
$version.string
[1] "R version 2.15.3 (2013-03-01)"
$nickname
[1] "Security Blanket"
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