All Questions
6 questions
46
votes
3
answers
56k
views
How can I convert data in the form of lat, lon, value into a raster file using R?
I have a data set of values over a km grid in the continental U.S. The columns are "latitude", "longitude", and "observation", e.g.:
"lat" "lon" "yield"
25.567 -120.347 3.6
25.832 -120....
- 1,943
14
votes
1
answer
62k
views
Converting geographic coordinate system in R
I have points in geographic coordinate system and I wanted to convert them to swiss grid (CH1903+).
Sample data:
id lon lat
2 7.173500 45.86880
3 7.172540 45.86887
4 7.171636 45....
- 251
3
votes
1
answer
4k
views
Creating DEM from vector contours using GRASS and R?
I want to convert vector contours to a DEM. From other posts, I wanted to use the Grass r.surf.contours tool.
Initially, I converted the vector contour layer to a rasterized contours using the ...
- 1,357
8
votes
2
answers
5k
views
Change a raster from longitude display (-180, 180) to (0, 360)
Using R software, I want to modify the attached raster in order to visualize it centered on the Pacific Ocean. Indeed, I need to show the entire Oceania: in my opinion I have to shift from (-180,180) ...
- 365
5
votes
2
answers
12k
views
R - NetCDF to Raster
I've recently started working with spatial data in R. I am currently working on a project that uses data in both raster and netcdf formats, and I'd be happy to convert the latter to the former, ...
- 53
5
votes
2
answers
7k
views
Convert ESRI Shapefile to Raster using R - biggest polygon area to raster cell value?
I want to create a raster from an ESRI shapefile. Multiple polygons may exist in one raster cell.
If so, I want to assign the attribute variable which occupies the biggest area of the raster cell. If,...
- 53