                                5.007e+02  </span>
<span class="r-out co"><span class="r-pr">#&gt;</span> poly(j, degree = poly_degree, raw = TRUE)2:as.factor(cal_time)19  </span>
<span class="r-out co"><span class="r-pr">#&gt;</span>                                                       -1.106e+00  </span>
<span class="r-out co"><span class="r-pr">#&gt;</span> poly(j, degree = poly_degree, raw = TRUE)3:as.factor(cal_time)19  </span>
<span class="r-out co"><span class="r-pr">#&gt;</span>                