You should PLOT the result variable, not "Bon" variable.
Best regards,
Tomasz Janeczko
amibroker.com
----- Original Message -----
From: Yves
To: [email protected]
Sent: Saturday, October 24, 2009 5:31 PM
Subject: Re: [amibroker] PREV of MS in AmiBroker
I'm try It
but maybe I'm made and error
Because the give to me nothing
my last 3 line in MetaStock
In AB
Bon:=
If(C>HautP AND C>BasP,5, If(C<BasP,0,PREV)) ;
Bon
Bon =
result = 0;
for( i = 1; i < BarCount; i++ )
{
prev = result[ i - 1];
result[ i ] = IIf( C[ i ] > HautP[ i ]
AND C[ i ] > BasP[ i ], 5,
IIf( C[ i ] < BasP[ i ], 0, prev ) );
} ;
Plot(Bon,"",colorBlue,styleThick);
Thank
Merci
YLTech ( Yves L. )
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----- Original Message -----
From: Tomasz Janeczko
To: [email protected]
Sent: Saturday, October 24, 2009 3:53 AM
Subject: Re: [amibroker] PREV of MS in AmiBroker
Hello,
This MS code:
result = (C>HautP AND C>BasP,5, If(C<BasP,0,PREV))
can be translated to:
result = 0;
for( i = 1; i < BarCount; i++ )
{
prev = result[ i - 1];
result[ i ] = IIF( C[ i ] > HautP[ i ] AND C[ i ] > BasP[ i ], 5, IIF( C[
i ] < BasP[ i ], 0, prev ) );
}
Although loop version is longer, it will execute 100 faster than in
Metastock, because
MS PREV is extremely inefficient.
Best regards,
Tomasz Janeczko
amibroker.com
----- Original Message -----
From: Yves
To: [email protected]
Sent: Saturday, October 24, 2009 6:45 AM
Subject: [amibroker] PREV of MS in AmiBroker
I'm try to translate this formula(Metastock) in Amibroker(AB)
(C>HautP AND C>BasP,5, If(C<BasP,0,PREV))
A guy from AB said to use the loop.
I'm use a formula on site Internet of AB(Percentage Trail Stop)
Why when I'm use my Formula, I'm obtain :
Error 6. Condition in IF, WHILE, FOR statements has to be Numeric or
Boolean type. You can not use array here, please use [] (array subscript
operator) to access array elements
And when I'm use the formula Percentage Trail Stop,
I don't obtain ERROR 6 ?????????????
WHY ???????
Thank
YLTech
Percentage Trail Stop
My Formula
StopLevel =Param("Percentage Trail Stop",0.05, 0.01, 0.6, 0.01 );
LK=50;
FF=10;
A1= IIf( L> Ref(HHV( Close,LK),-5), 1, 0);
A2= Sum( A1, LK ) ;
A3= IIf(C>0, FF, 0);
Buy = Cross(A2,A3);
Sell = 0;
trailARRAY = Null;
trailstop = 0;
for( i = 1; i < BarCount; i++ )
{
if( trailstop == 0 AND Buy[ i ] )
{
trailstop = High[ i ] * (1-stoplevel);
}
else Buy[ i ] = 0; // remove excess buy signals
if( trailstop > 0 )
{
trailstop = Max( High[ i ] * (1-stoplevel), trailstop );
trailARRAY[ i ] = trailstop;
}
if( trailstop > 0 AND Low[ i ] < trailstop )
{
Sell[ i ] = 1;
SellPrice[ i ] = trailstop;
trailstop=0;
}
}
PlotShapes(Buy*shapeUpArrow,colorBlue,0,Low);
PlotShapes(Sell*shapeDownArrow,colorRed,0,High);
Plot( Close,"Price",colorBlack,styleBar);
Plot( trailARRAY,"trailing stop level", colorRed );
_SECTION_BEGIN("Cr.HautP.");
TimeFrameSet( inDaily ); // switch now to Daily
HautP= Ref(H,-1) ;
BasP= Ref(L,-1) ;
TimeFrameRestore(); // restore time frame to original
StopLevel = BasP ;
Buy = Cross(C,HautP) ;
Sell = 0 ;
trailARRAY = Null;
trailstop = 0;
for( i = 1; i < BarCount; i++ )
{
if( trailstop == 0 AND Buy[ i ] )
{
trailstop = HautP ;
}
else Buy[ i ] = 0; // remove excess buy signals
if( trailstop > 0 )
{
trailstop = Max( HautP, trailstop );
trailARRAY[ i ] = trailstop;
}
if( trailstop > 0 AND Low[ i ] < trailstop )
{
Sell[ i ] = 1;
SellPrice[ i ] = trailstop;
trailstop=0;
}
}
PlotShapes(Buy*shapeUpArrow,colorBlue,0,Low);
PlotShapes(Sell*shapeDownArrow,colorRed,0,High);
Plot( Close,"Price",colorBlack,styleBar);
Plot( trailARRAY,"trailing stop level", colorRed );
_SECTION_END();
Merci
YLTech ( Yves L. )
Le présent message et les documents qui y sont joints sont réservés
exclusivement au destinataire indiqué. Il est strictement interdit d'en
utiliser ou d'en divulguer le contenu. Si vous recevez le présent message par
erreur, veuillez le détruire S.V.P. et nous en aviser immédiatement afin que
nous puissions corriger nos dossiers. Merci.
This message and the attached documents may contain privileged or
confidential information that are intended to the addressee only. Any
unauthorized disclosure is strictly prohibited. If you happen to receive this
message by error, please delete it and notify us immediately so that we may
correct our internal records. Thank you.
[email protected]
