 class="op">(</span><span class="va">mat</span><span class="op">)</span></span></span>
<span class="r-out co"><span class="r-pr">#&gt;</span>   Sepal.Length Sepal.Width Petal.Length Petal.Width Speciesversicolor</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> 1          5.1         3.5          1.4         0.2                 0</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> 2          4.9         3.0          1.4         0.2                 0</span>
<span class="r-out co"><span 