convert2sa                package:qtl                R Documentation

_C_o_n_v_e_r_t _a _s_e_x-_s_p_e_c_i_f_i_c _m_a_p _t_o _a _s_e_x-_a_v_e_r_a_g_e_d _o_n_e.

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

     Convert a sex-specific map to a sex-averaged one, assuming that
     the female and male maps are actually the same (that is, that the
     map was estimated assuming a common recombination rate in females
     and males).

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

     convert2sa(map, tol=1e-4)

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

     map: A map object with sex-specific locations (but assuming that
          the female and male maps are the same), as output by the
          function 'est.map' for a 4-way cross, with argument
          'sex.sp=FALSE'.

     tol: Tolerance value for inspecting the differences between the
          female and male maps; if they differ by more than this
          tolerance, a warning is issued.

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

     We pull out just the female marker locations, and give a warning
     if there are large differences between the female and male maps.

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

     A map object, with sex-averaged distances.

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

     Karl W Broman, kbroman@biostat.wisc.edu

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

     'est.map', 'plot.map'

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

     data(fake.4way)
     ## Not run: fake.4way <- subset(fake.4way, chr="-X")

     nm <- est.map(fake.4way, sex.sp=FALSE)
     plot(convert2sa(nm))

