getPossibleXrefs           package:biomaRt           R Documentation

_G_e_t _p_o_s_s_i_b_l_e _c_r_o_s_s-_r_e_f_e_r_e_n_c_e_s _i_n _E_n_s_e_m_b_l

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

     This function retrieves the possible cross-references present in
     Ensembl.  This is a very general function to see what can be
     extracted from Ensembl.  The results of this function can be used
     in the getXref function to extract the data of interest.

_U_s_a_g_e:

     getPossibleXrefs(mart)

_A_r_g_u_m_e_n_t_s:

    mart: object of class Mart, containing connections to the BioMart
          databases.  You can create such an object using the function
          useMart.

_A_u_t_h_o_r(_s):

     Sean Davis, Steffen Durinck,  <URL:
     http://www.esat.kuleuven.ac.be/~sdurinck>

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

     if(interactive()){
     mart <- useMart("ensembl",mysql=TRUE)

     xref <- getPossibleXrefs(mart = mart)
     xref[1:10,]

     martDisconnect(mart = mart)
     }

