I am trying to get a map with the type of soil depending of their texture. I have tried three options:
In SAGA. By using the tool "soil texture classification" where by using three raster with the % of sand, silt and clay it was supposed that I was going to get a map with results between 1 - 12 (http://www.saga-gis.org/saga_tool_doc/2.2.1/grid_analysis_14.html), but what I get it is a map with data between 254 and 255. Nothing to do with the expected result.
In R. There is a package named "soiltexture", but when I try to install it I am giving this message: "ERROR: dependency ‘sp’ is not available for package ‘soiltexture’". I do not know how to fix this issue.
In GRASS. It seems that there is a tool named "r.soils.texture", but I do not have this tool in my grass (QGIS 2.18.15).
So, I do not see more options to be able to get a map of soils by using any of these software.
Has anyone had any of these problems before?