Bubble charts in flex

Creat a New mxml file:
bubbleChart.mxml

<?xml version=”1.0″?> <mx:Application xmlns:mx=” http://www.adobe.com/2006/mxml “> <mx:Script> <![CDATA[ import mx.collections.ArrayCollection; [Bindable] public var expenses:ArrayCollection = new ArrayCollection([ {Month: “Jan”, Profit: 2000, Expenses: 120, Amount: 45}, {Month: “Feb”, Profit: 1000, Expenses: 200, Amount: 60}, {Month: “Mar”, Profit: 1500, Expenses: 500, Amount: 30}]); ]]> </mx:Script> <mx:Panel title=”Bubble Chart”> <mx:BubbleChart maxRadius=”50″ dataProvider=”{expenses}” showDataTips=”true”> <mx:series> <mx:BubbleSeries xField=”Profit” yField=”Expenses” radiusField=”Amount”/> </mx:series> </mx:BubbleChart> </mx:Panel> </mx:Application>