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 we use three different
     test statistic, 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 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

_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)

