.allchr                 Characters allowed in lineages
.ranks                  Ranks
abundances              Abundance table for 199 samples.
all_clades              Extract all clades present in the lineages
depth                   Common depth
error_lineage           Throw error if the string is not a lineage
is_clade                Test if a lineage belongs to a clade
is_lineage              Test if a string is a lineage
is_rank                 Test if a lineage goes down to a specified rank
last_clade              Extract the last clade of a lineage
last_rank               Extract the last rank of a lineage
taxtable                Taxonomic table
taxtree                 Taxonomic tree
