lookup_taxpartsize {aqp} | R Documentation |
Ranking Systems for USDA Taxonomic Particle-Size and Substitute Classes of Mineral Soils
Description
Generate a lookup table of USDA Particle-Size and Substitute Classes names, ranked according to approximate particle size
Usage
lookup_taxpartsize()
Value
A data.frame with a rank column, taxonomic family particle size class, and a flag for contrasting.
Author(s)
Stephen Roecker
References
Field Book for Describing and Sampling Soils, version 3.0
See Also
hz_to_taxpartsize()
, texture_to_taxpartsize()
, SoilTextureLevels()
Examples
# class codes
lu <- lookup_taxpartsize()
idx <- lu$contrasting == FALSE
lu$taxpartsize[idx]
lu$rank[as.integer(lu$taxpartsize)[idx]]
[Package aqp version 2.0.4 Index]