RE: [amibroker] [AFL help] How to sell at the second signal?

[kris45mar <kris45mar@xxxxxxxxx>]

Graham.

This works a treat, thanks a lot.

I have plotted these exits as below on CTX in around
June 03 just to see how they work.

I have changed your code to Sell = Sum(Sellsig,
BarsSince(Buy))==1;
on the theory that it should give the same result as
Sell = Cross(C,P1);

They do appear on the correct place on the chart.

Interesting though how with this exit there are many
exit arrows after the Sell signal, when I use your
Sell = Sum(Sellsig, BarsSince(Buy))==1;

whereas with the original Sell = Cross(C,P1); there
seems to be only one arrow at each correct location.

Do I have my exrems all messed up?
Or is this because my Equity(1) is at the top of the
code?

// --- trial JBPTL 2nd --- //
// Buy and Sell criteria here //

Equity(1);

P1 = EMA (H, (13)) + 2 * ATR ( 10 );
P2 = HHV (H,(20)) - (2 * ATR (10));
E = LLV (L, 20) + (2.5 * ATR (10));

Buy = Cross(C,E);

SellSig = Cross(C,P1);

Sell = Sum(Sellsig, BarsSince(Buy))==1;
//Sell = Cross(C,P1);

ApplyStop(stopTypeNBar,stopModeBars,40);

ExRem(Buy,Sell);
ExRem(Sell,Buy);

Filter = Buy;

Colorif = IIf(C < E,colorRed,colorBlue);


Plot (P1, "JBPTL", colorBrown, styleLine );
Plot (P2, "second PTL", colorGreen,styleLine);
Plot (E,"entry line", colorBlue, styleLine);
Plot (Close, "close", colorif, styleBar | styleThick);

PlotShapes(IIf(Buy,shapeHollowSquare,shapeNone),colorBrightGreen,
0,C, 1);
PlotShapes(IIf(Sell,shapeDownArrow
,shapeNone),colorRed,0,C,-8);

GraphXSpace = 3;
// ---  end ---  //

Regards.

ChrisB


--- Graham <gkavanagh@xxxxxxxxxxxxx> wrote:

> You could try this
> 
> SellSig = Cross(C,Profitline);
> Sell = sum(Sellsig, barssince(buy))==2;
> 
> Cheers,
> Graham
> http://e-wire.net.au/~eb_kavan/
> 
> -----Original Message-----
> From: kris45mar [mailto:kris45mar@xxxxxxxxx] 
> Sent: Sunday, December 12, 2004 10:42 AM
> To: amibroker@xxxxxxxxxxxxxxx
> Subject: [amibroker] [AFL help] How to sell at the
> second signal?
> 
> 
> Hi All...
> 
> What function can I use if I want to sell the
> *second
> time* an event occurs?
> 
> // buy and sell criteria here //
> Profitline = EMA (H, (13)) + 2 * ATR (10);
> 
> EntryLine = LLV (L, 20) + (2.5 * ATR (10));
> 
> Buy = Cross(C,Entryline);
> 
> 
> Sell = Cross(C,Profitline);
> 
> This gives me a sell signal the *first time* the
> close
> crosses the Profitline.
> How do I code for a sell signal the *second time*
> (or
> third time for that matter) the close crosses the
> profitline?
> 
> I thought I might be able to use 
> Sell = Ref(cross(c,Profitline),2); as a sort
> lookforward function, but this does not work.
> 
> or do I use the Sum or Cum functions somehow?
> 
> TIA
> 
> ChrisB
> 
> 
> 
> 		
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