RankingWelchT-methods      package:GeneSelector      R Documentation

_R_a_n_k_i_n_g _b_a_s_e_d _o_n _t_h_e _W_e_l_c_h _t _s_t_a_t_i_s_t_i_c.

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

     The Welch t statistic is a better alternative to the  'ordinary' t
     statistic in the two sample, unequal variances setting.

_M_e_t_h_o_d_s:

     The input (gene expression and class labels)  can be given in
     three different ways:


     _x = "_m_a_t_r_i_x", _y = "_n_u_m_e_r_i_c" signature 1

     _x = "_m_a_t_r_i_x", _y = "_f_a_c_t_o_r" signature 2

     _x = "_E_x_p_r_e_s_s_i_o_n_S_e_t", _y = "_c_h_a_r_a_c_t_e_r" signature 3

     For further argument and output information, consult 
     RankingWelchT.

