ass="op">)</span></span></span>
<span class="r-out co"><span class="r-pr">#&gt;</span> OLS estimation, Dep. Var.: y</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> Observations: 10</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> Fixed-effects: fe1: 3,  fe2: 5</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> Standard-errors: Clustered (fe1) </span>
<span class="r-out co"><span class="r-pr">#&gt;</span>   Estimate Std. Error t value Pr(&gt;|t|) </span>
<span class="r-o