Tests whether taxa are leaves in a taxonomic tree

Tests whether taxa are leaves in a taxonomic tree

is_leaf(taxon_ids, taxo)

Arguments

taxon_ids

internal, numeric ids of the taxa.
taxo

a taxonomy data.frame, typically from extract_taxo().

See also

Other taxonomy-related functions: ancestors(), as.taxo(), children(), descendants(), extract_taxo(), lineage(), parent(), taxo_id(), taxo_name()

Examples

print(as.Node(taxo), "id")

#>             levelName id
#> 1 #                   NA
#> 2  °--living           1
#> 3      ¦--fish         2
#> 4      ¦   °--egg      4
#> 5      °--mollusc      3
#> 6          ¦--snail    5
#> 7          ¦   °--egg  7
#> 8          °--squid    6
is_leaf(5, taxo)

#> [1] FALSE
is_leaf(6, taxo)

#> [1] TRUE
is_leaf(NA, taxo)

#> [1] NA
is_leaf(c(5,NA,6,NA), taxo)

#> [1] FALSE    NA  TRUE    NA