stat.gnames              package:marray              R Documentation

_S_o_r_t _G_e_n_e_s _A_c_c_o_r_d_i_n_g _t_o _t_h_e _V_a_l_u_e _o_f _a _S_t_a_t_i_s_t_i_c

_D_e_s_c_r_i_p_t_i_o_n:

     Lists genes and corresponding statistics in decreasing order of
     the statistics. This function applies to any type of statistic,
     including log ratios, one and two-sample t-statistics, and
     F-statistics. Missing values are ignored, as in 'sort(...,
     na.last=NA)'.

_U_s_a_g_e:

     stat.gnames(x, gnames, crit= 50)

_A_r_g_u_m_e_n_t_s:

       x: a numeric vector containing the statistics for each gene.
          Missing values (NAs) are allowed. 

  gnames: a character vector containing the gene names.

    crit: specifies the number of genes to be returned. If crit < 1,
          the crit*100% genes with the largest x values are listed. If
          crit >= 1, the crit genes with the largest x values are
          listed. 

_V_a_l_u_e:

     List containing the following components  

  gnames: gene names sorted in decreasing order of the statistics in x.

       t: statistics sorted in decreasing order.

_A_u_t_h_o_r(_s):

     Yee Hwa Yang, yeehwa@stat.berkeley.edu 
      Sandrine Dudoit, sandrine@stat.berkeley.edu

_S_e_e _A_l_s_o:

     'order', 'sort'.

_E_x_a_m_p_l_e_s:

     data(swirl)
     aveM <- apply(maM(swirl), 1, mean.na)
     Gnames <- maGeneTable(swirl)

     stat.gnames(abs(aveM), Gnames, crit=10)
     stat.gnames(aveM, Gnames, crit=0.01)