 class="r-out co"><span class="r-pr">#&gt;</span>  Subject  (Intercept) 31.507        </span>
<span class="r-out co"><span class="r-pr">#&gt;</span>           Days         6.766   -0.25</span>
<span class="r-out co"><span class="r-pr">#&gt;</span>  Residual             25.526        </span>
<span class="r-out co"><span class="r-pr">#&gt;</span> Number of obs: 144, groups:  Subject, 18</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> Fixed Effects:</span>
<span class="r-out co"><span class="r-pr