gahgu133bGENESTRAND       package:gahgu133b.db       R Documentation

_M_a_p _b_e_t_w_e_e_n _p_r_o_b_e_s_e_t _I_D_s _a_n_d _G_e_n_e_s _s_t_r_a_n_d

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

     gahgu133bGENESTRAND is an R object that maps probeset identifiers
     to the corresponding gene strand.

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

     Each probeset identifier maps to a vector containing the gene
     strand. If the gene strand is unknown, the vector will contain an
     'NA'.

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

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

             x <- gahgu133bGENESTRAND
             # Get the probe identifiers that are mapped to a gene strand
             mapped_probes <- mappedkeys(x)
             # Convert to a list
             xx <- as.list(x[mapped_probes])
             if(length(xx) > 0) {
               # Get the GENESTRAND for the first five probes
               xx[1:5]
               # Get the first one
               xx[[1]]
             }

