This example shows a grouped bar chart comparing three datasets across eight three-hour time windows, from midnight to late night, with values ranging from negative to positive. The chart is rendered using the Frappe Charts library, loaded from a CDN via the `frappe-charts` script tag, and configured with a `type: 'bar'` option. The code defines the data inline, including labels and three datasets with titles like "Some Data" and "Another Set," each assigned a distinct color, and sets a fixed chart height of 250 pixels. The visualization is created by instantiating a new `Chart` object, which handles the rendering and styling automatically.