6.180e-01  </span>
<span class="r-out co"><span class="r-pr">#&gt;</span> poly(j, degree = poly_degree, raw = TRUE)3:as.factor(cal_time)16  </span>
<span class="r-out co"><span class="r-pr">#&gt;</span>                                                        3.431e-04  </span>
<span class="r-out co"><span class="r-pr">#&gt;</span> poly(j, degree = poly_degree, raw = TRUE)1:as.factor(cal_time)17  </span>
<span class="r-out co"><span class="r-pr">#&gt;</span>                                                