s="va">Petal.Width</span> <span class="op">==</span> <span class="fl">.2</span>,</span></span>
<span class="r-in"><span>              one <span class="op">=</span> <span class="fl">1</span>,Sepal.Length<span class="op">=</span><span class="fl">2</span><span class="op">)</span></span></span>
<span class="r-out co"><span class="r-pr">#&gt;</span> Index: &lt;Petal.Width&gt;</span>
<span class="r-out co"><span class="r-pr">#&gt;</span>    Sepal.Length Sepal.Width Petal.Length Petal.Width Species   one</span>