[flexcomponents] creating line chart using action script

[arpan srivastava]

Hi ,
    I need to draw a linechart using only actionscript. I have done following:

        private var cat:CategoryAxis;
        private var lineS:LineSeries;

                this.dataProvider = _myDataProvider;
                cat = new CategoryAxis();
                cat.categoryField = "interval";
                cat.dataProvider = chartDataProvider;
                this.horizontalAxis = cat;

                    lineS  = new LineSeries();
                lineS.yField = "data";
                 lineS.dataProvider = _myDataProvider;
                this.series = new Array(lineS);            

                this.height=400;
                this.width=400;
                this.showDataTips=true;

Now where should I write this code. I have written it in initllize() function, 
but it is not working. My class is extending LineChart