allNA             package:externalVector             R Documentation

_T_h_e _g_e_n_e_r_i_c_s "_a_l_l_N_A" _a_n_d "_a_n_y_N_A".

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

     The two generic '"allNA"' returns 'TRUE' if all of its arguments
     are NA's and 'FALSE' otherwise.

     The two generic '"anyNA"' returns 'TRUE' if any of its arguments
     is NA and 'FALSE' otherwise.

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

     allNA(x)
     anyNA(x)

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

       x: An object on which 'is.na' can be applied. 

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

     Either 'TRUE' or 'FALSE'.

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

     allNA(1:3)
     allNA(c(NA, NA, NA))
     allNA(c(1, 2, NA))
     anyNA(1:3)
     anyNA(c(NA, NA, NA))
     anyNA(c(1, 2, NA))

