s="r-out co"><span class="r-pr">#&gt;</span>                                                        2.346e-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)3  </span>
<span class="r-out co"><span class="r-pr">#&gt;</span>                                                       -4.669e-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)4  </span>
<s