Variation along an ordering

<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/@toclocoinc/lattice-grid@1.28.0/lattice-grid.min.css">
<style>
  #grid > div { height: 460px; }
</style>
<div id="app"></div>

<script type="module">
  import * as Vue from 'https://esm.sh/vue@3';
  import { createGrid } from 'https://cdn.jsdelivr.net/npm/@toclocoinc/lattice-grid@1.28.0/lattice-grid.esm.min.js';
  import createLatticeGrid from 'https://cdn.jsdelivr.net/npm/@toclocoinc/lattice-grid@1.28.0/modules/vue.esm.min.js';

  const LatticeGrid = createLatticeGrid({ vue: Vue, createGrid });

  Vue.createApp({
    components: { LatticeGrid },
    data() {
      return {
        config: {
          rowKey: 'id',
          toolPanel: { side: 'left', panels: ['filters', 'columns'] },
          columns: [
            { field: 'date', title: 'Date', type: 'date', layout: { pin: 'start', width: 150 } },
            { field: 'price', title: 'Price', type: 'number' },
          ],
          rows,
        },
      };
    },
    mounted() {
      // The component exposes the live grid via a template ref, which every figure reads.
      const grid = this.$refs.grid.grid();
      const out = document.getElementById('out');
      const report = () => {
        // by is required: reductions see rows as loaded, not in the grid's sort.
        out.textContent = JSON.stringify(
          grid.statistics.series('price', { by: 'date', periodsPerYear: 252 }), null, 2);
      };
      grid.on('filter:changed', report);  // every figure follows the filters
      report();
    },
    template: `
      <div id="grid"><lattice-grid ref="grid" v-bind="config" /></div>
      <pre id="out" style="margin-top: 12px"></pre>
    `,
  }).mount('#app');
</script>