Statistics in the totals row

<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/@toclocoinc/lattice-grid@1.13.0/lattice-grid.min.css">
<script src="https://cdn.jsdelivr.net/npm/@toclocoinc/lattice-grid@1.13.0/lattice-grid.min.js"></script>

<div id="grid" style="height: 460px"></div>

<script>
  const grid = LatticeGrid.createGrid(document.getElementById('grid'), {
    rowKey: 'id',
    columnDefaults: { filter: true },
    columns: [
      { field: 'reference', title: 'Reference', layout: { pin: 'start', width: 150 } },
      { field: 'desk', title: 'Desk', filter: { type: 'set' } },
      // Each column names its own reduction: median, 95th percentile, deviation.
      { field: 'price', title: 'Price', type: 'number', total: 'median' },
      { field: 'bid', title: 'Bid', type: 'number', total: 'p95' },
      { field: 'volume', title: 'Volume', type: 'number', total: 'iqr' },
      { field: 'notional', title: 'Notional', type: 'number', total: 'sum' },
    ],
    rows,
  });
</script>