ontology_index: Create 'ontology_index' object from vectors and lists of term...
In oganm/ontologyIndexOgfork: Functions for Reading Ontologies into R

Create ontology_index object from vectors and lists of term properties

1 2	ontology_index(parents, id = names(parents), name = id, obsolete = setNames(nm = id, rep(FALSE, length(id))), version = NULL, ...)

`parents`	List of character vectors of parents per term.
`id`	Character vector of term IDs. Defaults to the `"names"` attribute of the `parents` argument and must be the same length as `parents`.
`name`	Character vector of term labels.
`obsolete`	Logical vector indicating whether given terms are obsolete.
`version`	Version information about the ontology.
`...`	Additional arguments, each of which should be either a vector or list of term properties, each with the same length as `id`.

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animal_superclasses <- list(animal=character(0), mammal="animal", cat="mammal", fish="animal")
animal_ontology <- ontology_index(parents=animal_superclasses)
unclass(animal_ontology)