Different scan results

[zaccy]

Why am I getting different "trade processed" results when I run scans ?
The number of trades found varies by up to 50%

The entry criteria is identical
The dates are identical
The data is identical

So why is there a variation in the trades found, this should be the same with every scan or you are not comparing apples to apples ?

I ran a series of daily scans for the year 2009 and recorded the results, then ran T/S and could not replicate any of the results IE number of trades,wins,losses etc

I am using "Bullcharts" ,Norgate Premium data(eod) "Tradesim Enterprise"

Looking forward to your reply
zaccy

[zaccy]

Sorry ,wrong part of the forum
zaccy

[David Samborsky]

Are you talking about scanning the same data and running a simulation using the data that has not been updated ?? Or are you talking about scanning one day, running a simulation and then updating your data, scanning again and running another simulation etc ??

[zaccy]

Hi David, yes running the same scan the same day on the same data but the "trades processed" numbers can vary by up to 50%, where as I would have thought that number would stay the same, and only the win/loss would vary according to your exit criteria
zaccy