contROC              package:nonbinROC              R Documentation

_P_e_r_f_o_r_m_s _R_O_C-_t_y_p_e _a_n_a_l_y_s_i_s _f_o_r _c_o_n_t_i_n_u_o_u_s _s_c_a_l_e _g_o_l_d _s_t_a_n_d_a_r_d

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

     Assess the accuracies of diagnostic tests when the gold standard
     is continuous.

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

     contROC(gldstd, test1, test2 = NULL)

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

  gldstd: vector giving the gold standard

   test1: vector giving a diagnostic test

   test2: optional vector giving another diagnostic test

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

     In the paired design, `contROC' returns the accuracies and
     associated standard errors of the  diagnostic tests, their
     covariance and the test for comparing two diagnostic tests'
     accuracies. 

     Otherwise, `contROC' returns the accuracy and associated standard
     error of the diagnostic test.

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

     Paul Nguyen

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

     Obuchowski, N. A. (2005) Estimating and comparing diagnostic
     tests' accuracy when the gold  standard is not binary. _Academic
     Radiology_, 12, 1198-1204.

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

     #A paired design example for tumor renal masses from Obuchowski (2005)
     data(tumor)
     attach(tumor)
     contROC(SURG, CT, Fi)

     #A paired design example for blood iron concentrations from Obuchowski (2006)
     data(blood)
     attach(blood)
     contROC(Serum, TIBC, TS)

