[amibroker] BarsSince Puzzle

["ricko8294_98" <ricko@xxxxxxxxxx>]

Hello all
I am trying to get an exploration to tell me how many days a trade 
has been in place.

My code is

Buy = mylongsystem
Short = myshortsystem

Then I do the Exrem thing

Then
LongSince = BarsSince(Buy);
ShortSince = BarsSince(Short);
Mn = Min(LongSince,ShortSince);  
           // This gives the No. of days for the LAST to occur

Filter = Buy OR Short;
AddColumn( IIf( Buy, Asc("B"), Asc("S")), "Signal", formatChar ); 
          // produces "B" for Buy, and "S" for Short

BUT when I add
AddColumn(Mn,"Days",1.0); >>>> this always produces zeros.

YET if I display Mn in the Interpretation Window, I see the correct 
result.

QUESTION - why does the correct result not show up in the exploration 
window?


TIA

Rick






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