demo D194
Variation along an ordering
Volatility, growth and drawdown, from rows loaded out of order
grid.statistics.series(col, { by })
Loading a live grid…
The configuration
<script>
import { createGrid } from 'https://cdn.jsdelivr.net/npm/@toclocoinc/lattice-grid@1.28.0/lattice-grid.esm.min.js';
import createLatticeAction from 'https://cdn.jsdelivr.net/npm/@toclocoinc/lattice-grid@1.28.0/modules/svelte.esm.min.js';
const lattice = createLatticeAction({ createGrid });
let out = '';
const 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,
// onGrid hands over the live grid the moment it is created. by is required:
// reductions see rows as loaded, not in the grid's sort. Every figure follows
// the filters, so narrow the rows and the series moves.
onGrid: (grid) => {
const report = () => {
out = JSON.stringify(
grid.statistics.series('price', { by: 'date', periodsPerYear: 252 }), null, 2);
};
grid.on('filter:changed', report);
report();
},
};
</script>
<svelte:head>
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/@toclocoinc/lattice-grid@1.28.0/lattice-grid.min.css">
</svelte:head>
<div use:lattice={config} style="height: 460px"></div>
<pre style="margin-top: 12px">{out}</pre>