MDCu                  package:NADA                  R Documentation

_C_o_p_p_e_r _i_n _g_r_o_u_n_d _w_a_t_e_r _f_r_o_m _o_f _S_a_n _J_o_a_q_u_i_n _V_a_l_l_e_y, _U_S_A

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

     Copper concentrations in ground water from the Alluvial Fan zone
     in the San Joaquin Valley of California.  One observation was
     altered to become a <21, larger than all of the detected
     observations (the largest detected observation is a 20).

     Objective is to calculate summary statistics when the largest
     observation is censored.

     There are five detection limits, at 1, 2, 5, 10 and 20 ug/L. An
     additional artificial detection limit of 21 was added to
     illustrate a point.  Used in Chapter 6 of the NADA book.

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

     data(MDCu)

_S_o_u_r_c_e:

     Millard and Deverel, 1988, Water Resources Research 24, pp.
     2087-2098.

_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.

