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Thanks Graham,
But I think StaticVarSet("aaa",lastvalue(Longentry)); will also set the static var to 'false' when Longentry is false...
I want the staticvar to be set 'true' if longentry is ever true, and then only reset when there's a longExit signal..)
Wes
----- Original Message ----
From: Graham <kavemanperth@xxxxxxxxx>
To: amibroker@xxxxxxxxxxxxxxx
Sent: Friday, January 12, 2007 4:05:04 PM
Subject: Re: [amibroker] Help with Static vars
there are easier ways without the IF's
LongEntry = C > Ref(H,-1) ;
LongExit = C < Ref(L,-1) ;
StaticVarSet("aaa",lastvalue(Longentr y));
Longlatch = (Longentry OR StaticVarGet("aaa"));
--
Cheers
Graham
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On 13/01/07, wes_zoltran2 <wes_zoltran@ yahoo.com> wrote:
I'm trying to learn Static vars
The example I'm using is to form a 'Latch' type function, similar to
FLIP, for use in RT trading. (see dicussion last week in the
amibroker-at group).
The goal is to 'latch' a condition as true, once it has occurred,
regardless if the condition becomes false later in the curent bar
For example, if price > prior close. The normal FLIP doesn't work in
RT, as the condtion may vary during the bars life, and flip() only
"latches" at bar close time.
So here's the original code example using flip..
--
LongEntry = C > Ref(H,-1) ;
LongExit = C < Ref(L,-1) ;
/* The following 'Flip' doesn't work in RT.
It will vary with the condition, until the bar closes */
inlong = Flip(Longentry, longexit) ;
Plot(inlong,"",colorGreen, styleArea, 0,10);
PlotShapes(IIf( Longentry, shapeUpTriangle, shapeNone) ,colorLime) ;
PlotShapes(IIf( Longexit, shapeDownTriangl e,shapeNone) ,colorRed) ;
Title = Name() + " In long entry = " + inlong ;
--
And here's my attempt with using static vars to latch 'inlong' = true
on the 1st occurance of the signal.
But it doesn't work right .. the static var doesn't seem to getting
set.. or at least that's the appearance.
--
_SECTION_BEGIN("RT-FLIP");
LongEntry = C > Ref(H,-1) ;
LongExit = C < Ref(L,-1) ;
if (Longentry[BarCount -1] = True)
{
StaticVarSet("aaa",True);
}
if (Longexit[BarCount- 1] = True)
{
StaticVarSet("aaa",False);
}
Longlatch = (Longentry OR StaticVarGet("aaa"));
inlong = Flip(Longlatch ,longexit);
/* This should be true, until we get a new longexit ) */
Plot(inlong,"",colorGreen, styleArea, 0,10);
PlotShapes(IIf( Longentry, shapeUpTriangle, shapeNone) ,colorLime) ;
PlotShapes(IIf( Longexit, shapeDownTriangl e,shapeNone) ,colorRed) ;
SignalText = WriteIf(inlong, EncodeColor( colorLime) + " IN LONG TRADE","");
Title = Name() + " longentry = " + Longentry + " StVar= " +
StaticVarGet("aaa") + signaltext;
_SECTION_END( );
---
I suspect I'm getting hung up in my use of barcount and/or my use of
the braces in the IF statements.
Any help would be appreciated.
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