proximity-classes           package:arules           R Documentation

_C_l_a_s_s_e_s "_d_i_s_t", "_a_r__c_r_o_s_s__d_i_s_s_i_m_i_l_a_r_i_t_y" _a_n_d "_a_r__s_i_m_i_l_a_r_i_t_y" - _P_r_o_x_i_m_i_t_y _M_a_t_r_i_c_e_s

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

     Simple classes to represent proximity matrices.  For compatibility
     with clustering functions in 'R', we represent dissimilarities as
     the 'S3' class 'dist'.  For cross-dissimilarities and
     similarities, we provide the 'S4' classes
     'ar_cross_dissimilarities' and 'ar_similarities'.

_O_b_j_e_c_t_s _f_r_o_m _t_h_e _C_l_a_s_s:

     'dist' objects are the result of calling the method 
     'dissimilarity' with one argument or any 'R' function returning a
     'S3 dist' object.

     'ar_cross_dissimilarity' objects are the result of calling the
     method 'dissimilarity' with two arguments, by  calls of the form
     'new("similarity", ...)', or by coercion from matrix.

     'ar_similarity' objects are the result of calling the method
     'affinity', by  calls of the form  'new("similarity", ...)', or by
     coercion from matrix.

_S_l_o_t_s:

     The 'S4' classes have a 'method' slot which contains the type of
     measure used for calculation.

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

     'dist' (in package 'stats'), 'dissimilarity', 'affinity'.

