Heatmap is for **Day-based Month-wise data**.

> The heatmap is a representation of day-wise data (similar to the GitHub Contribution Graph). It spaces out data values linearly, across 5 levels (zero data kept exclusive).

In this case, the data has three parts: `dataPoints`, `start`, and `end`.

```js

let data = {

dataPoints: {

1426744959: 20,

1463673055: 113,

1476892421: 57,

// ...

},

start: startDate, // a JS date object

end: endDate,

};

```

The chart is rendered by the type `heatmap`:

```js

let chart = new Chart("#heatmap", {

type: "heatmap",

data: data,

});

```

If you wish you can configure the radius of heat squares:

```js

radius: 2, // default 0

```

Setting `discreteDomains` to `0` allows for a continous distribution of heat squares (as on GitHub), rather than showing the month-wise separation. A different set of colors can also be specified.

```js

discreteDomains: 0, // default 1

colors: ['#ebedf0', '#c0ddf9', '#73b3f3', '#3886e1', '#17459e'],

```

The documentation navigation also lists Exporting, Configuration, API, Wrappers, and Contributing.