[flexcoders] SeriesInterpolate in actionscript ColumnChart?

[sailorsea21]

Hi everyone, I'm trying to set a SeriesInterpolate for my ColumnSeries, this is 
my code:

var columnChart:ColumnChart         = new ColumnChart();
(...)
var action:SeriesInterpolate        = new SeriesInterpolate();
action.duration                     = 1000;
action.minimumElementDuration       = 200;
action.elementOffset                = 0;                
var myColumnSeries:Array            = new Array();              
var col:ColumnSeries                = new ColumnSeries();
col.yField                          = "data";
col.xField                          = "title";  
col.setStyle("showDataEffect",action);
myColumnSeries.push(col);       
columnChart.series                  = myColumnSeries;

If I write it out in MXML, I can get it to work, but not in actionscript. What 
am I doing wrong?

Thanks.