This function accepts a vector of horizon distinctness codes, a look-up vector of codes, and a corresponding vector of vertical offsets. The defaults are based on USDA-NCSS field methods.
hzDistinctnessCodeToOffset(x, codes = c("A", "C", "G", "D"), offset = c(0.5, 1.5, 5, 10))
Missing data (NA) or codes that are not defined in the `codes' argument are returned as 0 offsets.
a vector of vertical offsets, with the same length as the number of distinctness codes passed to the function
http://www.nrcs.usda.gov/wps/portal/nrcs/detail/soils/ref/?cid=nrcs142p2_054184
data(sp1) hzDistinctnessCodeToOffset(sp1$bound_distinct)