="false" fullComment="yes" group="Ungrouped">
      <a id="concat(arrs:IndexedSeq[org.saddle.Vec[Double]]):org.saddle.Vec[Double]"></a>
      <a id="concat(IndexedSeq[Vec[Double]]):Vec[Double]"></a>
      <h4 class="signature">
      <span class="modifier_kind">
        <span class="modifier"></span>
        <span class="kind">def</span>
      </span>
      <span class="symbol">
        <span class="name">concat</span><span class="params">(<span name="arrs">arrs: <span class="extype" name="scala.IndexedSeq"