/p><pre><span class="kw">val</span> t = IndexedSeq((<span class="lit">"a"</span>, <span class="lit">"x"</span>, <span class="num">3</span>), (<span class="lit">"b"</span>, <span class="lit">"y"</span>, <span class="num">4</span>))
<span class="kw">val</span> f = t.toFrame

res0: org.saddle.Frame[java.lang.<span class="std">String</span>,java.lang.<span class="std">String</span>,<span class="std">Int</span>] =
[<span class="num">2</span> x <span class="num">2</span>]
      x  y
     -- --
a -&gt;  <span clas