exprs.MA                package:limma                R Documentation

_E_x_t_r_a_c_t _L_o_g-_E_x_p_r_e_s_s_i_o_n _M_a_t_r_i_x _f_r_o_m _M_A_L_i_s_t

_D_e_s_c_r_i_p_t_i_o_n:

     Extract the matrix of log-expression values from an 'MAList'
     object.

_U_s_a_g_e:

     exprs.MA(MA)

_A_r_g_u_m_e_n_t_s:

      MA: an 'MAList' object.

_D_e_t_a_i_l_s:

     Converts M and A-values to log-expression values. The output
     matrix will have two columns for each array, in the order green,
     red for each array.

     This contrasts with 'as.matrix.MAList' which extracts the M-values
     only, or 'RG.MA' which converts to expression values in 'RGList'
     form.

_V_a_l_u_e:

     A numeric matrix with twice the columns of the input.

_A_u_t_h_o_r(_s):

     Gordon Smyth

_S_e_e _A_l_s_o:

     02.Classes gives an overview of data classes used in LIMMA.