[amibroker] I optimize, reset defaults, run backtest and can't duplicate results

["graphman27" <steve@xxxxxxxxxxxxxxxxxxx>]

Greetings:  I've only had this happen a few times, but I run an optimization, choose the best parameters, insert them as the new default values and run another backtest.  98% of the time, with all my different strategies, I can duplicate the optimized results, which is obviously what should happen.  However, on a few occasions, I follow those steps and get results not even close to the optimized values.

I'm assuming there is something wrong with the simple code I use in this strategy.  Maybe something with the "Buy" or "SELL" segment and not properly using "CROSS."  Being a newbie to AmiBroker, I can't see the problem, but I'm sure someone with good afl skills will probably immediately spot it:

EMAShortBuy=Optimize("EMAShortBuy",10,4,10,2);
EMALongBuy=Optimize("EMALongBuy",50,20,60,10);
StochRange1=Optimize("StochK1",20,10,40,10);
StochRange2=Optimize("StochK2",2,1,3,1);

Buy = 	Cross(EMA( Close,EMAShortBuy ),EMA( Close,EMALongBuy ));

Sell = StochK(StochRange1,StochRange2)>75;

Short = 0;

Cover = 0;

Plot( EMA ( Close,10 ),"Short EMA", colorGreen, styleThick ); 
Plot( EMA ( Close,50 ),"Long EMA", colorRed, styleThick );
Plot( StochK ( 25,2 ),"stochk", colorBlue, styleThick ); 

/* max loss stop optimization */

ApplyStop(stopTypeLoss, 
         stopModePercent, 
         Optimize( "max. loss stop level", 0, 2, 10, 2 ), 
         True ); 

ApplyStop(stopTypeTrailing, 
         stopModeRisk, 
         Optimize( "trailing loss stop level", 0, 10, 90, 10 ), 
         True ); 

Any ideas are welcomed.



------------------------------------

**** IMPORTANT PLEASE READ ****
This group is for the discussion between users only.
This is *NOT* technical support channel.

TO GET TECHNICAL SUPPORT send an e-mail directly to 
SUPPORT {at} amibroker.com

TO SUBMIT SUGGESTIONS please use FEEDBACK CENTER at
http://www.amibroker.com/feedback/
(submissions sent via other channels won't be considered)

For NEW RELEASE ANNOUNCEMENTS and other news always check DEVLOG:
http://www.amibroker.com/devlog/

Yahoo! Groups Links

<*> To visit your group on the web, go to:
    http://groups.yahoo.com/group/amibroker/

<*> Your email settings:
    Individual Email | Traditional

<*> To change settings online go to:
    http://groups.yahoo.com/group/amibroker/join
    (Yahoo! ID required)

<*> To change settings via email:
    amibroker-digest@xxxxxxxxxxxxxxx 
    amibroker-fullfeatured@xxxxxxxxxxxxxxx

<*> To unsubscribe from this group, send an email to:
    amibroker-unsubscribe@xxxxxxxxxxxxxxx

<*> Your use of Yahoo! Groups is subject to:
    http://docs.yahoo.com/info/terms/