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The iif() does not give the same result because
ref(inlongpos, -1) == 0 except when the previous bar is a buy.
You can see exactly what is happening
graphically with
buy =
sell =
inlongpos = iif(...
plot(c, "", iif(buy, colorred, iif(sell, coloryellow,
colorpalegreen)), stylebar);
title = "inlongpos = " + inlongpos + "
ref(inlongpos..." + ref(inlongpos...) + " buy = " + buy + " sell ="
+ sell
If you want the iif() approach to hold either a buy or
sell value for each bar additional code is needed to create this
condition.
Bill
----- Original Message -----
Sent: Thursday, March 27, 2008 8:10
AM
Subject: Re: [amibroker] Something is
different. But what ?
Sure. This of course if part of an AFL with Buy
and Sell defined. Also an init for InLongPos
being set to zero as a starter. Again the ForLoop
works fine. I checked that with following statement : AddColumn(InLongPos,"Long",1);
My problem is that I do not understand why the
first statement does not give me the correct answer where the second does
...
Regards, Ton.
----- Original Message -----
Sent: Thursday, March 27, 2008 12:55
PM
Subject: Re: [amibroker] Something is
different. But what ?
Is there more to the code? Are you getting a
syntax/initialization error? How are you handling the case when i
== 1?
Bill
----- Original Message -----
Sent: Thursday, March 27, 2008 7:01
AM
Subject: [amibroker] Something is different. But
what ?
> Why is following AFL statement :
>
> InLongPos =
IIf(Buy==1,1000,IIf(Sell==1,0,Ref(InLongPos,-1)));
>
> giving me a different result as following ForLoop :
>
> for ( i=1; i<BarCount; i++ )
> {
> if
(Buy[i]==1)
> InLongPos[i] = 1000;
> else
> {
> if
(Sell[i]==1)
> InLongPos[i] = 0;
> else
> InLongPos[i] =
InLongPos[i-1];
> }
> }
>
> The result I am
getting from the ForLoop is correct. The first
> statement gives me a
wrong answer. I want to get 1000 in InLongPos
> after Buy and before
Sell ... When testing the statement in Excel
> it works fine with :
=IF(A6=1;1000;IF(B6=1;0;C5)) ...
>
> What's wrong
?
>
>
>
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__._,_.___
Please note that this group is for discussion between users only.
To get support from AmiBroker please send an e-mail directly to
SUPPORT {at} amibroker.com
For NEW RELEASE ANNOUNCEMENTS and other news always check DEVLOG:
http://www.amibroker.com/devlog/
For other support material please check also:
http://www.amibroker.com/support.html
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