Can we skip some symbols during the exploration?

In my AFL ,I am trying to initialize Mavg[0].....Mavg[9]. I am getting "Array Subscript out of range" error for a particular symbol out of all symbols while doing exploration.. But it seems the failed symbol has BarCount < 10. Is there a way I can filter out this symbol for exploration?

I tried using "Filter = BarCount > 100" , but it does not seems to be working for me. Please help.

if( Barcount > 100 ) {
            Mavg[0] =;
Filter = BarCount > 100