FormativeElements       Identify formative elements in taxon names at
                        Soil Order, Suborder, Great Group or Subgroup
                        level
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)
ST_higher_taxa_codes_13th
                        Letter Code Lookup Table for Position of Taxa
                        within the Keys to Soil Taxonomy (13th Edition)
SoilTaxonomyLevels      Get (Ordered) Factors based on Soil Taxonomy
                        Key position
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
extractSMR              Extract Soil Moisture Regime from Subgroup or
                        Higher Level Taxon
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 at the Soil Order, Suborder,
                        Great Group or Subgroup level
get_ST_family_classes   Get soil family / series differentiae and class
                        names
get_ST_features         Get soil diagnostic horizons, characteristics
                        and features
isValidST               Check for valid taxonomic level (Order,
                        Suborder, Great Group, Subgroup)
level_hierarchy         Order of Hierarchical Levels in Soil Taxonomy
level_to_taxon          Get all taxa at specified level
newick_string           Generate Newick Tree Format Parenthetic Strings
parent_level            Parent/Child Hierarchy
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)
taxonTree               Create a 'data.tree' Object from Taxon Names
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
