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[amibroker] calling all AFL masters



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Hello

Well, here we go - I am going to take Yuki and Tomasz and a few others 
up on their offer to post here with my questions, newbie though they may 
be. I will continue to ask until someone tells me that I need to stop 
because I'm driving them crazy :)

I know most of my questions will be ridiculously if not irritatingly 
simple for most of you.

Below is an AA attempt using Aroon. The idea is to buy when the 
*condition* parameters are true. I am trying to limit position size, but 
it isn't working. Is there something wrong with the position size filter 
I am attempting?  When I ask for this Analysis on a basket of stocks, I 
get filled for the entire capital amount on the first signal, instead of 
getting a smaller fill based on this stop, leaving capital free to take 
subsequent entry signals. Also, I occasionally get filled for i.e. 3 
shares of a $12 stock when the entire capital amount seems to be available.

Any help is appreciated. I have learned that you have to be a lot more 
meticulous using AFL than Metastock Formula Language - perhaps I have 
made some silly error.

Please pay special attention to this line of the following code;  note 
the negative sign in front of the two.

*TrailStopAmount = -2 * ATR( 20 );

___________________________________________________________________________________________________
*

ALen = 14;
AroonUp = 100 * (ALen - (HHVBars(H, ALen + 1))) / Alen;
AroonDn = 100 * (ALen - (LLVBars(L, ALen + 1))) / ALen;
Condition=(AroonUp>AroonDn) AND
Ref(AroonUp,-1)<Ref(AroonDn,-1) AND
Ref(AroonDn,-1)>68 AND
C>MA(C,50) AND
AroonUp=100;

Buy= Condition;
Sell=0;//

TrailStopAmount = -2 * ATR( 20 );
Capital = 100000;

Risk = 0.01*Capital;
PositionSize = (Risk/TrailStopAmount)*BuyPrice;
ApplyStop( 2, 2, TrailStopAmount, 0);











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