Reference

All functions
code_to_level()	Determine taxonomic level of a taxonomic letter code
decompose_taxon_code()	Decompose taxon letter codes
explainST()	Explain a taxon name using formative elements
FormativeElements() OrderFormativeElements() SubOrderFormativeElements() GreatGroupFormativeElements() SubGroupFormativeElements()	Identify formative elements in taxon names at Soil Order, Suborder, Great Group or Subgroup level
getChildTaxa()	Get the lower (child) taxa for a taxon name or code
getLastChildTaxon()	Get last child taxon in Keys at specified taxonomic level
getParentTaxa()	Get the higher (parent) taxa for a taxon name or code
getTaxonAtLevel()	Get the taxon name the Soil Order, Suborder, Great Group or Subgroup level
get_ST_features()	Get diagnostic horizons, characteristics and features
isValidST()	Check for valid taxonomic level (Order, Suborder, Great Group, Subgroup)
level_to_taxon()	Get all taxa at specified level
parse_family()	Parse components of a family-level taxon name
preceding_taxon_codes()	Get taxon codes of preceding taxa
relative_taxon_code_position()	Determine relative position of taxon within Keys to Soil Taxonomy (Order to Subgroup)
ST	Soil Taxonomy Hierarchy
ST_family_classes	Family-level Classes for Soil Taxonomy
ST_features	Epipedons, Diagnostic Horizons, Characteristics and Features in Soil Taxonomy
ST_formative_elements	Formative Elements used by Soil Taxonomy
ST_higher_taxa_codes_12th	Letter Code Lookup Table for Position of Taxa within the Keys to Soil Taxonomy (12th Edition)
taxon_code_to_taxon()	Convert taxon code to taxon name
taxon_to_level()	Determine taxonomic level of specified taxa
taxon_to_taxon_code()	Convert taxon name to taxon code