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- _M_a_n_t_e_l-_H_a_e_n_s_z_e_l _C_h_i-_S_q_u_a_r_e _T_e_s_t _f_o_r _C_o_u_n_t _D_a_t_a
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- mantelhaen.test(x, y = NULL, z = NULL, correct = TRUE)
-
- _A_r_g_u_m_e_n_t_s:
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- x : either an array of dimension 2 by 2 by s,
- where s is the number of strata, or a dicho-
- tomous factor object.
-
- y : a dichotomous factor object; ignored if x is
- an array.
-
- z : a factor object idenitifying to which stratum
- the corresponding elements in x and y belong;
- ignored if x is an array.
-
- correct : a logical indicating whether to apply con-
- tinuity correction when computing the test
- statistic.
-
- _D_e_s_c_r_i_p_t_i_o_n:
-
- mantelhaen.test performs a Mantel-Haenszel chi-square
- test of the null that x and y are conditionally
- independent in each stratum.
-
- If x is an array, it must be of dimension 2 by 2 by s,
- and the entries should be nonnegative integers. NA's
- are not allowed. Otherwise, x, y and z must have the
- same length. Triples containing NA's are removed.
- Both x and y must be dichotomous (take exactly 2
- values).
-
-