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Re: [amibroker] System development tutorial by Herman van den Bergen



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This cond2 needs to have something to make it unique occurence
example
Cond2=  BarsSince(Cross(C,MA(C,150))) == 5;

Cheers,
Graham
http://e-wire.net.au/~eb_kavan/

-----Original Message-----
From: graeme_oswin [mailto:goswin@xxxxxxxxxxx] 
Sent: Wednesday, May 12, 2004 8:05 PM
To: amibroker@xxxxxxxxxxxxxxx
Subject: [amibroker] AFL Logic Question

Fristly thank you to all those who have helped in my developing 
understanding of AFL programming.

Secondly what is wrong with the logic of the following code:

Cond1=MA(C,15)>MA(C,150);
Cond2=BarsSince(Cross(C,MA(C,150)));
Buy=Cond1 AND Cond2<10;
Filter=Cond1 AND Cond2<10;
AddColumn(Cond2,"Cond2",1.2);

Simply I am attempting to discover stocks that have recently (in the 
last ten days) crossed above their 150 moving average and the 15 day 
moving average is currently above the 150 day moving average.

When I scan or filter I find some stocks that meet these criteria 
while others have been able their 150 MA for ages while reporting 0 
for Cond2.

What have I missed in terms of the logic? 

Regards and sincere thanks,

Graeme Oswin



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