woolf_test                package:vcd                R Documentation

_W_o_o_l_f _T_e_s_t

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

     Test for homogeneity on 2 x 2 x k tables over strata (i.e.,
     whether the log odds ratios are the same in all strata).

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

     woolf_test(x)

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

       x: A 2 x 2 x k table.

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

     A list of class '"htest"' containing the following components:  

statistic: the chi-squared test statistic.

parameter: degrees of freedom of the approximate chi-squared
          distribution of the test statistic.

 p.value: p-value for the test.

  method: a character string indicating the type of test performed.

data.name: a character string giving the name(s) of the data.

observed: the observed counts.

expected: the expected counts under the null hypothesis.

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

     'mantelhaen.test'

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

     data(CoalMiners)
     woolf_test(CoalMiners)

