GOBPOFFSPRING               package:GO               R Documentation

_A_n_n_o_t_a_t_i_o_n _o_f _G_O _I_d_e_n_t_i_f_i_e_r_s _t_o _t_h_e_i_r _B_i_o_l_o_g_i_c_a_l _P_r_o_c_e_s_s _O_f_f_s_p_r_i_n_g

_D_e_s_c_r_i_p_t_i_o_n:

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

_D_e_t_a_i_l_s:

     Each GO BP term is mapped to a vector of offspring GO BP terms.

     Biological process is defined as the broad biological goals, such
     as mitosis or purine metabolism, that are accomplished by ordered
     assemblies of molecular functions as defined by Gene Ontology
     Consortium.

     Mappings were based on data provided by:

     Gene Ontology:\<URL:
     ftp://ftp.geneontology.org/pub/go/godatabase/archive/latest>.
     Built: Build Information not available

     Package built: Wed Aug 29 09:09:17 2007

_R_e_f_e_r_e_n_c_e_s:

     <URL: http://www.geneontology.org/> and <URL:
     http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=gene>

_E_x_a_m_p_l_e_s:

       require("GO", character.only = TRUE) || stop("GO unavailable")
       # Convert the environment object to a list
       xx <- as.list(GOBPOFFSPRING)
       # Remove GO IDs that do not have any offspring
       xx <- xx[!is.na(xx)]
       if(length(xx) > 0){
         # Get the offspring GO IDs for the first two elents of xx
         goids <- xx[1:2]
       }

