charts/docs/basic/multiple_datasets.md

Multiple datasets

A chart can have multiple datasets. In an axis chart, every dataset is represented individually.

data: {
    labels: ["Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sun"],
    datasets: [
      { name: "Dataset 1", values: [18, 40, 30, 35, 8, 52, 17, -4] },
      { name: "Dataset 2", values: [30, 50, -10, 15, 18, 32, 27, 14] }
    ]
}

All the lineOptions and barOptions apply to mutliple datasets as well.

In Aggregation Charts however, instead of being rendered individually, each data point in aggregated accross every dataset. We'll cover those next.