tcomment cmt">Cumulative sum for each column; each successive element of the output is the cumulative
sum from the initial element, ignoring NAs.</p>
    </li><li visbl="pub" name="org.saddle.stats.FrameStats#demeaned" data-isabs="false">
      <a id="demeaned((Vec[T]) ⇒ VecStats[T]):Frame[RX, CX, Double]"></a>
      <h4 class="signature">
      <span class="modifier_kind">
        <span class="modifier"></span>
        <span class="kind">def</span>
      </span>
      <span class="symbol">
        <span 