soil_class.Rdsoil texture class, based on USDA triangle
soil_class(clay, sand)Character vector of soil texture class, one of
c("Cl", "SiCl", "SaCl", "ClLo", "SiClLo", "SaClLo", "Lo", "SiLo", "SaLo",  "Si", "LoSa", "Sa").
Julien Moeys (2016). soiltexture: Functions for Soil Texture Plot, Classification and Transformation. R package version 1.5.1. https://CRAN.R-project.org/package=soiltexture
clay = c(05, 60, 15, 05, 25, 05, 25, 45, 65, 75, 13, 47)
sand = c(90, 32, 70, 70, 20, 10, 10, 10, 20, 10, 70, 10)
soil_class(clay, sand)
#>  [1] "Sa"   "Cl"   "SaLo" "SaLo" "SiLo" "Si"   "SiLo" "SiCl" "Cl"   "Cl"  
#> [11] "SaLo" "SiCl"
# c("Sa", "Cl", "SaLo", "SaLo", "SiLo", "Si", "SiLo", "SiCl", "Cl", "Cl", "SaLo", "SiCl")