twTStats             package:CoCiteStats             R Documentation

_C_o_m_p_u_t_e_s _3 _t_w_o _w_a_y _t_a_b_l_e _s_t_a_t_i_s_t_i_c_s.

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

     For two way tables based on co-citations four different test
     statistics are reported, the odds ratio, the Concordance, the
     Jaccard index  and Hubert's Gamma.

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

     twTStats(twT)

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

     twT: A two way table, as produced by 'twowayTable'. 

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

     The entries in the presumed 2 by 2 table are labeled n11, n12,
     n21, n22, corresponding to the entries in the first row first
     column, first row  second column etc. The odds ratio is the
     product of n11 and n22 divided  by the product of n12 and n21. The
     Conordance is simply the n11 entry. The Jaccard index is the n11
     entry divided by the sum of n11, n12, and n21. Hubert's Gamma is
     slightly more complicated.

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

Concordance : The concordance statistic.

 Jaccard: The Jaccard index.

  Hubert: Hubert's Gamma

OddsRatio: The odds ratio.

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

     R. Gentleman

_R_e_f_e_r_e_n_c_e_s:

     Testing Gene Associations Using Co-citation, by B. Ding and R.
     Gentleman. Bioconductor Technical Report, 2004

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

     'paperLen', 'twowayTable'

_E_x_a_m_p_l_e_s:

       tw1 = twowayTable("10", "101", FALSE)
       twTStats(tw1)

