is_root {metacoder}

Test if taxa are roots

Description

Test if taxa are roots in a [taxonomy()] or [taxmap()] object. Roots are taxa without supertaxa, typically things like "Bacteria", or "Life".

obj$is_root()
is_root(obj)

Arguments

obj

The [taxonomy()] or [taxmap()] object.

Value

A 'logical' of length equal to the number of taxa.

See Also

Other taxonomy data functions: classifications(), id_classifications(), is_branch(), is_internode(), is_leaf(), is_stem(), map_data(), map_data_(), n_leaves(), n_leaves_1(), n_subtaxa(), n_subtaxa_1(), n_supertaxa(), n_supertaxa_1(), taxon_ids(), taxon_indexes(), taxon_names(), taxon_ranks()

Examples

# Test for which taxon IDs correspond to roots
is_root(ex_taxmap)

# Filter out roots
filter_taxa(ex_taxmap, ! is_root)