families              package:snpMatrix              R Documentation

_T_e_s_t _d_a_t_a _f_o_r _f_a_m_i_l_y _a_s_s_o_c_i_a_t_i_o_n _t_e_s_t_s

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

     These data started life as real data derived from an affected
     sibling pair study of type 1 diabetes. However, original subject
     and SNP identidiers have been replaced by randomly chosen ones.

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

     data(families)

_F_o_r_m_a_t:

     Theer are two objects in the loaded data file:

'_g_e_n_o_t_y_p_e_s' An object of class '"snp.matrix"' containing the SNP
     genotype data for both parents and affected offspring

'_p_e_d_f_i_l_e' A data frame containing the standard six fields for a
     _LINKAGE_ pedfile. The are named 'familyid', 'member', 'father',
     'mother' 'sex', and 'affected'  The two objects are linked by
     common row names.

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

     Coding in the 'pedfile' frame is as in the _LINKAGE_ package,
     except that missing data are coded 'NA' rather than zero

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

     data(families)
     summary(summary(genotypes))
     summary(pedfile)

