a id="combine[U]((Z, Vec[T]) ⇒ U)(ST[U]):Frame[Z, Y, U]"></a>
      <h4 class="signature">
      <span class="modifier_kind">
        <span class="modifier"></span>
        <span class="kind">def</span>
      </span>
      <span class="symbol">
        <span class="name">combine</span><span class="tparams">[<span name="U">U</span>]</span><span class="params">(<span name="fn">fn: (Z, <a name="org.saddle.Vec" class="extype" href="../Vec.html">Vec</a>[T]) ⇒ U</span>)</span><span class="params">(<span class