censummary               package:NADA               R Documentation

_P_r_o_d_u_c_e_s _b_a_s_i_c _s_u_m_m_a_r_y _s_t_a_t_i_s_t_i_c_s _o_n _c_e_n_s_o_r_e_d _d_a_t_a

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

     Produces basic, and hopefully useful, summary statistics on
     censored data.

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

         censummary(obs, censored, groups)

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

     obs: A numeric vector of observations. 

censored: A  logical vector indicating TRUE where an observation in x
          is censored (a less-than value) and FALSE otherwise.   

  groups: A factor vector used for grouping `obs' into subsets. 

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

     A 'censummary' object.

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

     Lopaka(Rob) Lee <rclee@usgs.gov>

     Dennis Helsel <dhelsel@usgs.gov>

_R_e_f_e_r_e_n_c_e_s:

     Helsel, Dennis R. (2005).  Nondectects and Data Analysis;
     Statistics for censored environmental data.  John Wiley and Sons,
     USA, NJ.

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

         data(DFe)
         with(DFe, censummary(Summer, SummerCen))

