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Not certain what you are trying to do, but just looking at your code
Posopen is 0 to start with, then you assign buy==1 when previous posopen is
0. ie buy=1 at second bar. You then tell it that posopen = buy which was
last determined to be 1, but buy is held back by the original
ref(posopen,-1) which was 0. Unless you have another condition to break the
original buy statement it will always stay at buy1 as you kept posopen at 0.
I think you would be better with a loop for this
posOpen[0] = 0;
for(i=1;i<BarCount;i++)
{ if(posopen[i-1]==0)
{ Buy[i]=1; posOpen[i]=1;}
else
{ Buy[i]=0; posOpen[i]=0;}
}
Sell = 0;
Filter=1;
AddColumn(BarIndex(), "BarIndex");
AddColumn(posOpen, "posOpen");
AddColumn(Ref(posOpen, -1), "Ref(posOpen -1)");
AddColumn(Sell, "sell");
AddColumn(Buy, "buy");
This will give alternating buy values of 0 and 1
But there is another easier way of doing this if you are trying to determine
if you have an open trade. I just used the buy and sell conditions of
barindex as a means to test it.
Buy = BarIndex()==BarCount-10;//buy conditions
Sell = BarIndex()==BarCount-5;//sell conditions
Buy = Flip(Buy,Sell);//holds buy=1 until sell signal
Filter=1;
AddColumn(Buy,"B",1);
AddColumn(Sell,"S",1);
Hope this is some help, as it was hard to determine what you were intending
to do.
Cheers,
Graham
http://e-wire.net.au/~eb_kavan/
-----Original Message-----
From: Rick Charon [mailto:rickcharon@xxxxxxxxx]
Sent: Friday, May 07, 2004 9:15 AM
To: amibroker@xxxxxxxxxxxxxxx
Subject: [amibroker] Improper code behavior
The following code doesn't work as expected. What am I missing?
Thanks. (The buy flips once, then stays 1, even though Ref(posOpen, -
1) is 1.
Filter = 1;
posOpen[0] = 0;
Buy = (Ref(posOpen, -1) == 0);
posOpen = Buy;
Sell = 0;
AddColumn(BarIndex(), "BarIndex");
AddColumn(posOpen, "posOpen");
AddColumn(Ref(posOpen, -1), "Ref(posOpen -1)");
AddColumn(Sell, "sell");
AddColumn(Buy, "buy");
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