rowQ                 package:Biobase                 R Documentation

_A _f_u_n_c_t_i_o_n _t_o _c_o_m_p_u_t_e _e_m_p_i_r_i_c_a_l _r_o_w _q_u_a_n_t_i_l_e_s.

_D_e_s_c_r_i_p_t_i_o_n:

     This function computes the requested quantile for each row of a
     matrix, or of an 'exprSet'.

_U_s_a_g_e:

     rowQ(imat, which)
     rowMax(imat)
     rowMin(imat)

_A_r_g_u_m_e_n_t_s:

    imat: Either a matrix or an 'exprSet'. 

   which: An integer indicating which order statistic should be
          returned.

_D_e_t_a_i_l_s:

     'rowMax', 'rowMin' and 'rowMedians' simply call 'rowQ' with the
     appropriate argument set. 

     The argument 'which' takes values between 1, for the minimum per
     row, and 'ncol(imat)', for the maximum per row.

_V_a_l_u_e:

     A vector of length equal to the number of rows of the input matrix
     containing the requested quantiles.

_A_u_t_h_o_r(_s):

     R. Gentleman

_S_e_e _A_l_s_o:

     'rowMedians'. 'rowMeans()' in 'colSums'().

_E_x_a_m_p_l_e_s:

      data(sample.exprSet)
      rowMin(sample.exprSet)
      rowQ(sample.exprSet, 4)

