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Stefano
Scan will list out all of the Buy and Sell signals generated by the search
code. These are just the signals themselves, no features for actual trades.
The Backtest uses the signals and applies them in simulated trading. What it
does is takes the first buy (or short) signal within the time range and
starts trading from there. Subsequent buy signals are ignored, until a sell
signal is generated. Then it exits the trade and waits for the next buy
signal to come. Cycle repeats within the time range. Similar with the short
trading short to cover signals.
Now to make things more complicated if you trade both long and short then AB
backtest can only be in a single trade at one time for a stock. So a short
signal will end a long trade, and start the short, then it is ended by
either the next cover signal (or buy signal)
Results of the backtest will simulate a real trade example.
Hope this has not confused you more than helped.
Cheers,
Graham
http://groups.msn.com/ASXShareTrading
http://groups.msn.com/FMSAustralia
-----Original Message-----
From: Stefano Dotti [mailto:arvdot@xxxxxx]
Sent: Sunday, 30 March 2003 5:28 PM
To: Graham
Subject: Re[2]: [amibroker] Difference
Hello Graham,
There is a little fog, Explore is clear but the difference between
Scan and Back Test is not much clear.
I will see to study it better. Thanks
--
regards
Stefano
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