readCdfGroupNames         package:affxparser         R Documentation

_R_e_a_d_s _g_r_o_u_p _n_a_m_e_s _f_o_r _a _s_e_t _o_f _u_n_i_t_s (_p_r_o_b_e_s_e_t_s) _i_n _a_n _A_f_f_y_m_e_t_r_i_x _C_D_F _f_i_l_e

_D_e_s_c_r_i_p_t_i_o_n:

     Reads group names for a set of units (probesets) in an Affymetrix
     CDF file.

     This is for instance useful for SNP arrays where the nucleotides
     used for the A and B alleles are the same as the group names.

_U_s_a_g_e:

     readCdfGroupNames(filename, units=NULL, truncateGroupNames=TRUE, verbose=0)

_A_r_g_u_m_e_n_t_s:

filename: The filename of the CDF file.

   units: An 'integer' 'vector' of unit indices specifying which units
          to be read.  If 'NULL', all units are read.

truncateGroupNames: A 'logical' variable indicating whether unit names
          should be stripped from the beginning of group names.

 verbose: An 'integer' specifying the verbose level. If 0, the file is
          parsed quietly.  The higher numbers, the more details.

_V_a_l_u_e:

     A named 'list' structure where the names of the elements are the
     names of the units read.  Each element is a 'character' 'vector'
     with group names for the corrsponding unit.

_A_u_t_h_o_r(_s):

     Henrik Bengtsson (<URL: http://www.braju.com/R/>)

_S_e_e _A_l_s_o:

     'readCdfUnits'().

