[flexcoders] Chart call function

[flexnewbie06]

Hi Folks,
Quick question, can I call a function from the xField in a chart - bar
series and pass a field from DP...I can't seem to get the syntax
correct? Thanks in advance.

example. (excerpted code)

        
private function calculate(x:String):String 
     var y:int = int(x)
     y = y/60;
     return String(y);
}

<mx:BarSeries 
     yField="@name" 
     xField="{calculate(@erroredSeconds)}" 
     displayName="Outage Minutes"/>  

<mx:BarSeries 
     yField="@name" 
     xField="{calculate(@viewedSeconds)}" 
     displayName="Viewed Minutes"/>