[amibroker] How to compare RS in an Exploration?

[blakerandy]

Hi all,  I'm very new to using AFL and would like to find out how I
can compare a list of ETF's to an index?

I have the basic exploration to calculate various ROC time periods and
can display these okay, but I would also like to get a comparison as
to how they performed against an index.

The code I have so far is:

NumColumns = 3;
Column2 = ROC(Close,65);
Column2Name = "13 w% ROC";     
Column1 = ROC (Close,130);
Column1Name = "26 w% ROC ";
Column0= ROC (Close,260);
Column0Name="52 w% ROC";

Filter = 1;

Any help would be appreciated.

Thanks,