Hello,

I am new user of AB, the software looks great but I have come accross some problems with the use of BackTest() in OLE automation .. could someone more experienced explain me what it is going on  ?   

Here is an excerpt of a small _javascript_ (taken directly from the documentation):

if(AA.LoadFormula(filename)) {
    AA.Backtest();
    ...
    AA.Report( ReportFile); // ReportFile is a valid filename with "\\"
   ...
}

A report is generated when no argument is given, in that case, as I understand the doc, the default parameter is 2 which means "old backtester" (I actually checked that no argument yields to the same result as arg=2). 
But, and another post earlier this year reports exactly the same, when parameter is 0 (new backtester), then no report is generated (same behaviour with  Export() function) ...

Something else I don't understand is that with the old backtester, some trades labelled as "OUT" are generated (while there are no such trades with the same formula and the new backtesters), what does that mean ?

Many thanks for your help !

Nicolas






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