get_anno_categories     Get all associated ontology categories for the
                        input genes
get_anno_genes          Get genes that are annotated to GO-categories
get_child_nodes         Get all child nodes of gene ontology categories
get_ids                 Get the ID of a GO-category given its name
get_names               Get the full names of gene ontology categories
                        given the IDs
get_parent_nodes        Get all parent nodes of gene ontology
                        categories
go_enrich               Test gene sets for enrichment in GO-categories
plot_anno_scores        Plot distribution of scores of genes annotated
                        to GO-categories
refine                  Refine results given a FWER threshold
