jittermap                package:qtl                R Documentation

_J_i_t_t_e_r _m_a_r_k_e_r _p_o_s_i_t_i_o_n_s _i_n _a _g_e_n_e_t_i_c _m_a_p

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

     Jitter the marker positions in a genetic map so that no two
     markers are on top of each other.

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

     jittermap(object, amount=1e-6)

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

  object: Either a cross (an object of class 'cross'; see 'read.cross'
          for details) or a map (an object of class 'map'; see
          'pull.map' for details).

  amount: The amount by which markers should be moved.

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

     Either the input cross object or the input map, but with marker
     positions slightly jittered.  If the input was a cross, the
     function 'clean' is run to strip off any intermediate
     calculations.

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

     Karl W Broman, kbroman@biostat.wisc.edu

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

     'pull.map', 'replace.map', 'summary.cross'

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

     data(hyper)
     hyper <- jittermap(hyper)

