How to use model to update Chart data

[SaranshVora]

Hello Everyone,
I am using this example only the cpp file and my qml code is :

/// this is the name of my model as given in the above example. I have just used customtablemodel.cpp and changed it to ScopeDataModel.cpp
 ScopeDataModel{ 
        id:scopeModel

    }
  ChartView
    {
        id: chartView
        title: " Scope "
        anchors.fill: parent
        legend.visible: false
        antialiasing: true
        backgroundColor: "white"
        plotAreaColor: "white"
        titleColor: "white"

        ValueAxis {
            id: axisX
            titleText:componentData.readXAxisName
            min: componentData.changeXMin
            max: componentData.changeXMax
            tickCount: 1
        }

        ValueAxis {
            id: axisY
            titleText:componentData.readYAxisName
            min: componentData.changeYMin
            max: componentData.changeYMax
            tickCount: 1
        }

        LineSeries {

            id: lineSeries
            name: "Data Output"
            axisX: axisX
            axisY: axisY
            useOpenGL: true
            VXYModelMapper{
            model:scopeModel
            xColumn:0
            yColumn:1
            series:lineSeries
            }
        }
    }

How can I use this model to instantiate tableview and other details in my code ?
Because I tried doing it like this but it did not update my data on the chart.