Get stems — stems • taxa

Get stem indexes for each taxon or another per-taxon value.

Usage

stems(x, value = NULL, ...)

Arguments

x: An object with taxonomic relationships, like taxonomy objects.
value: Something to return instead of indexes. Must be the same length as the number of taxa.
...: Additional arguments.

See also

Other taxonomy functions: internodes(), leaves(), roots(), subtaxa(), supertaxa()

Other stem functions: is_stem()

Examples

x <- taxonomy(c('Carnivora', 'Felidae', 'Panthera', 'Panthera leo',
                'Panthera tigris'),
              supertaxa = c(NA, 1, 2, 3, 3))
x <- c(x, x)
stems(x)
#> [[1]]
#> [1] 1 2
#> 
#> [[2]]
#> [1] 6 7
#> 
stems(x, value = tax_name(x))
#> [[1]]
#> [1] "Carnivora" "Felidae"  
#> 
#> [[2]]
#> [1] "Carnivora" "Felidae"  
#>