s="op">)</span><span class="op">)</span></span></span>
<span class="r-out co"><span class="r-pr">#&gt;</span> Linear mixed model fit by REML ['lmerMod']</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> Formula: Reaction ~ Days + (1 | Subject) + (0 + Days | Subject)</span>
<span class="r-out co"><span class="r-pr">#&gt;</span>    Data: sleepstudy</span>
<span class="r-out co"><span class="r-pr">#&gt;</span>  Subset: Days &gt;= 2</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> REML 