ass='va'>model_gam_ex</span><span class='op'>$</span><span class='va'>model</span><span class='op'>[[</span><span class='fl'>1</span><span class='op'>]</span><span class='op'>]</span>,
  ind_vec <span class='op'>=</span> <span class='va'>ind_init_ex</span><span class='op'>$</span><span class='va'>ind_train</span><span class='op'>[[</span><span class='fl'>1</span><span class='op'>]</span><span class='op'>]</span>,
  press_vec <span class='op'>=</span> <span class='va'>ind_init_ex</span><span class='op'>$</sp