abs2ratio             package:timecourse             R Documentation

_C_o_n_v_e_r_t _l_o_g-_v_a_l_u_e_s _t_o _l_o_g-_r_a_t_i_o_s

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

     For a single gene, computes the log ratios between time courses 
     from two paired biological conditions.

_U_s_a_g_e:

     abs2ratio(x, mn, k, c.grp, reference)

_A_r_g_u_m_e_n_t_s:

       x: a numeric vector giving the log-values of a gene with two
          paired biological conditions, sorted in ascending order by
          biological condition, replicate, and time groups.

      mn: a numeric matrix giving the sample sizes for the two
          biological conditions.

       k: a positive integer giving the number of time points.

   c.grp: an numeric or character vector with length equals to that of
          'x', giving the biological condition group for each element
          of 'x'.

reference: a numeric value or character assigning the reference
          biological condition.

_D_e_t_a_i_l_s:

     This function is for internal use only and is not to be called by
     the user.

_V_a_l_u_e:

     a numeric vector containing log-ratios between two paired
     biological conditions.

_A_u_t_h_o_r(_s):

     Yu Chuan Tai yuchuan@stat.berkeley.edu

_S_e_e _A_l_s_o:

     'mb.paired'.

