Again, please keep communication on the maillist, to help others as well.
The R spatial maillist is R-sig-Geo in case you want to continue there.
Here's my solution. I read in your layers, then looped over all
polygons. Inside the loop I extract the minimum value of the DEM, then
subtract tha
(Keeping on the list. And consider my suggestion to move this to R-sig-Geo)
What is the coordinate reference system of the polygon layer? Can you
share these layers?
On 21/11/2023 4:58, javad bayat wrote:
Dear Micha;
Thank you for your reply.
The R version is 4.3.2, the raster package is "r
Hi:
Some preliminary comments first
1- You might get a better response posting to R-sig-Geo
2- Probably better to switch to the `terra` package instead of the older
`raster`
3- Furthermore, there is the package `exactextractr` that ensures that
edge pixels are taken into account, weighted b
Dear all;
I am trying to calculate volume under each polygon of a shapefile according
to a DEM.
when I run the code, it gives me an error as follows.
"
Error in h(simpleError(msg, call)) :
error in evaluating the argument 'x' in selecting a method for function
'addAttrToGeom': sp supports Z dimen
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