Breaks one taxonomy into multiple, each with a root of a specified distance from the root.
split_by_level(taxa, parents, level, rank = NULL)a list of taxon id character vectors.
taxa.
(character) Unique taxon IDs for every possible taxon.
(character) Unique taxon IDs for the supertaxa of every possible taxon.
(character or numeric of length 1)
(character) The rank designation (e.g. "genus") corresponding to each observation in