Statistical values in a column

<script>
  import { createGrid } from 'https://cdn.jsdelivr.net/npm/@toclocoinc/lattice-grid@1.27.0/lattice-grid.esm.min.js';
  import createLatticeAction from 'https://cdn.jsdelivr.net/npm/@toclocoinc/lattice-grid@1.27.0/modules/svelte.esm.min.js';

  const lattice = createLatticeAction({ createGrid });

  let out = '';

  const config = {
    rowKey: 'id',
    toolPanel: { side: 'left', panels: ['filters', 'columns'] },
    columns: [
      { field: 'symbol', title: 'Symbol', layout: { pin: 'start', width: 120 } },
      { field: 'price', title: 'Price', type: 'number' },
    ],
    rows,
    // onGrid hands over the live grid the moment it is created. Each figure is
    // read straight from the grid and follows the filters: narrow the rows and
    // the median, standard deviation and 90th percentile all move.
    onGrid: (grid) => {
      const report = () => {
        out = 'median ' + grid.statistics.reduce('price', 'median')
          + ' · stddev ' + grid.statistics.reduce('price', 'stddev')
          + ' · p90 ' + grid.statistics.reduce('price', 'p90');
      };
      grid.on('filter:changed', report);  // every figure follows the filters
      report();
    },
  };
</script>

<svelte:head>
  <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/@toclocoinc/lattice-grid@1.27.0/lattice-grid.min.css">
</svelte:head>

<div use:lattice={config} style="height: 460px"></div>
<pre style="margin-top: 12px">{out}</pre>