nmissing                 package:qtl                 R Documentation

_N_u_m_b_e_r _o_f _m_i_s_s_i_n_g _g_e_n_o_t_y_p_e_s

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

     Count number of missing genotypes for each individual or each
     marker in a cross.

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

     nmissing(cross, which=c("ind","mar"))

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

   cross: An object of class 'cross'.  See 'read.cross' for details.

   which: Indicates whether to count missing genotypes for each
          individual or each marker.

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

     A vector containing the number of missing genotypes for each
     individual or for each marker.

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

     Karl W Broman, kbroman@jhsph.edu

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

     'summary.cross', 'nind', 'totmar'

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

     data(listeria)

     # plot number of missing genotypes for each individual
     plot(nmissing(listeria))

     # plot number of missing genotypes for each marker
     plot(nmissing(listeria, which="mar"))

