The above example shows you how to create `BarChart` 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 stacked column chart using the <code>stacked</code> property.
For example:
...
"options" => array(
...
"scales" => array(
"xAxes" => array(
array(
"stacked" => true,
)
),
"yAxes" => array(
array(
"stacked" => true,
)
)
)
)
...