gahgu95cENTREZID         package:gahgu95c.db         R Documentation

_M_a_p _b_e_t_w_e_e_n _p_r_o_b_e_s_e_t _I_d_e_n_t_i_f_i_e_r_s _a_n_d _E_n_t_r_e_z _G_e_n_e

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

     gahgu95cENTREZID is an R object that provides mappings between
     probeset identifiers and Entrez Gene identifiers.
     gahgu95cENTREZID2PROBE provides the reverse mapping.

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

     Each probeset identifier is mapped to a vector of Entrez Gene
     identifiers. An 'NA' is assigned to those probeset identifiers
     that can not be mapped to an Entrez Gene identifier at this time.

     Mappings were based on data provided by: Genecards (
     http://www.genecards.org ) on 2009-mag06

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

             x <- gahgu95cENTREZID
             # Get the probe identifiers that are mapped to an ENTREZ Gene ID
             mapped_probes <- mappedkeys(x)
             # Convert to a list
             xx <- as.list(x[mapped_probes])
             if(length(xx) > 0) {
               # Get the ENTREZID for the first five probes
               xx[1:5]
               # Get the first one
               xx[[1]]
             }

