ONTOFFSPRING: Annotation of ontology Identifiers to their Offspring
In hxin/topOnto.HDO.db: TopOnto ontology db package

Description Details Examples

This data set describes associations between ontology terms and their offspring terms, based on the directed acyclic graph (DAG). The format is an R object mapping the ontology terms to all offspring terms, where an ancestor term is a more specific ontology term that is preceded by the given ontology term in the DAG (in other words, the children and all their children, etc.).

Each ontology term is mapped to a vector of offspring ontology terms.

  # Convert the object to a list
  xx <- as.list(ONTOFFSPRING)
  # Remove ontology IDs that do not have any offspring
  xx <- xx[!is.na(xx)]
   if(length(xx) > 0){
    # Get the offspring ontology identifiers for the first two elents of xx
    identifiers <- xx[1:2]
  }