Ranking Systems for USDS Soil Texture Classes
Generate a vector of USDA soil texture codes or class names, sorted according to approximate particle size
SoilTextureLevels(which = "codes")
which |
'codes' (texture codes) or 'names' (texture class names) |
an ordered factor
# class codes SoilTextureLevels() # class names SoilTextureLevels(which = 'names')
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