halfsibscan             package:lodplot             R Documentation

_S_i_m_u_l_a_t_i_o_n _o_f _a_f_f_e_c_t_e_d _h_a_l_f-_s_i_b _p_a_i_r _g_e_n_o_m_e _s_c_a_n

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

     Generate results from an affected half-sib pair genome scan

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

     halfsibscan(N = 100, grid = 1)

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

       N: is the number of affected half-sib pair families

    grid: the distance between the (perfectly informative) scan markers

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

     Carried out the appropriate random walk on each chromosome to
     generate lod scores that would result if there were no trait loci
     segregating in the pedigrees sampled.

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

     A data frame, containing:  

   'chr': the chromosome (1..22, X)

   'pos': the genetic map position on the chromosome

   'lod': the simulated lod score.

_A_u_t_h_o_r(_s):

     David L Duffy

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

     plot.scan

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

     #
     # Plot one simulated scan
     #
       plot.scan(halfsibscan(), with.X=TRUE)

