probesByLL             package:annotate             R Documentation

_A _f_u_n_c_t_i_o_n _t_h_a_t _g_r_o_u_p_s _p_r_o_b_e _i_d_s _b_y _L_o_c_u_s_L_i_n_k _i_d_s

_D_e_s_c_r_i_p_t_i_o_n:

     This  function takes the name of a platform specific annotation
     data package (e. g. an Affymetrix chip) and returns a list of
     vectors of character string with LocusLink ids as the names of the
     lists of vectors and probe ids corresponding to the LocusLink ids
     as values.

_U_s_a_g_e:

     probesByLL(baseName)

_A_r_g_u_m_e_n_t_s:

baseName: 'baseName' a character string for the name of platform
          specific annotation data package

_D_e_t_a_i_l_s:

     Each platform specific annotation data package has a LOCUSID
     environment that maps probe ids to LocusLink ids. This function
     does reverse mappings by grouping probe ids under unique LocusLink
     ids and returns the mappings as a list.

_V_a_l_u_e:

     This function returns a list of vectors of character strings with
     unique LocusLink ids as the names and probe ids corresponding to
     the LocsuLink ids as values.

_A_u_t_h_o_r(_s):

     Jianhua Zhang

_E_x_a_m_p_l_e_s:

         if(require("hgu95av2")){
             tt <- probesByLL("hgu95av2")
             tt[1:4]
         }

