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
)
)
)
...