The above example shows you how to create `LineChart` using ChartJs package. In this example, for purpose of chart demonstration only, we do use mock-up data from array. As you can see, the KoolReport's widget in general support dataSource could be DataStore, Process, DataSource or even simple array.

This example shows how to build a line chart with the step size on the y-axis set using the <code>stepSize</code> property.

For example:

    ...
    "yAxes" => array(
        array(
            ...
            "ticks" => array(
                ...
                "stepSize" => 5
            )
        )
    )
    ...