James,
I attached an example of 1 way to do this in Amibroker. Because it is a swing
system there are no end of day exits. You need to define the day session ("show
day seesion only") in the settings of Amibroker else it will exit or enter
outside the regular trading hours. You can also program this inside to code but
for simplicity I left it like this first.
You can also use Applystop but I prefer it like this so I have little
experience with Applystop.
regards, Ed
----- Original Message -----
From: James
To: [email protected]
Sent: Tuesday, October 13, 2009 12:07 AM
Subject: Re: [amibroker] Help with simple code
Ed,
Do you have a sample of this type of exit loop or know of one in the library
I could look at?
What do you think of ApplyStop? Do you know if ApplyStop solves the problems
I posted on 10/10 concerning the built in stops not being recognized as trades.
James
------------------------------------------------------------------------------
From: Edward Pottasch <[email protected]>
To: [email protected]
Sent: Mon, October 12, 2009 1:41:03 AM
Subject: Re: [amibroker] Help with simple code
hi james,
your targets change because you are using Buy and Short signals to define
these targets which you later remove with exrem. So before you define your
targets you need to remove the redundant signals. I usually think these kind of
problems are easier solved using an exit loop but it makes it slower.
regards, Ed
----- Original Message -----
From: James
To: amibro...@yahoogrou ps.com
Sent: Sunday, October 11, 2009 11:32 PM
Subject: [amibroker] Help with simple code
Can someone help explain what I am doing wrong. In the following code, it
appears the variables ShortTarget and LongTarget change when ShortCondition or
BuyCondition occur even though these conditions are not part of the definition.
Looking at a 30min chart RTH only of ESZ9-GLOBEX- FUT, I get a Sell on
9/30/2009 at 2:00PM which gives a ShortTarget of 1016.80. On 10/1/2009 at 8:30,
ShortCondition = 1, but Short = 0 because of the ExRem statement, yet
ShortTarget changes from 1016.80 to 1012.92 which is not intended.
Also, this "simple" excercise in coding this simple system is spiraling out
of control as I keep thinking TJ's code would be like 3 lines, so I would
appreciate suggested improvements for learning.
TIA,
James
SetFormulaName ("30 34 System");
/*
The 30/34 System is a swing system for trading the S&P E-mini futures (ES).
Signals are taken from a 30 minute chart of the ES with a 34 EMA
(exponential moving average).
Only RTH data is used. No entries or exits are made during Globex session.
Entry rules:
Buy when price crosses 34 EMA +1 point.
Sell when price crosses below 34 EMA -1 point.
Profit target is entry price +/- 3%.
Buy stop is 34 EMA -5 points, MIT.
Sell stop is 34 EMA +5 points, MIT.
*/
BuyAvg = EMA (C,34) + 1;
SellAvg = EMA (C, 34) -1;
LongStopAvg = EMA (C,34) - 5;
ShortStopAvg = EMA (C,34) + 5;
BuyCondition = Cross (C, BuyAvg);
ShortCondition = Cross (SellAvg, C);
LongStopCondition = Cross (LongStopAvg, L);
ShortStopCondition = Cross (H, ShortStopAvg) ;
Buy = BuyCondition;
LongTarget = ValueWhen (Buy, C, 1) * 1.03;
LongProfitCondition = Cross (H, LongTarget);
Sell = LongStopCondition OR LongProfitCondition OR ShortCondition;
Short = ShortCondition;
ShortTarget = ValueWhen (Short, C, 1) * 0.97;
ShortProfitConditio n = Cross (ShortTarget, L);
Cover = ShortStopCondition OR ShortProfitConditio n OR BuyCondition;
Buy=ExRem(Buy,Sell);
Sell=ExRem(Sell, Buy);
Short=ExRem(Short,Cover);
Cover=ExRem(Cover,Short);
Plot( BuyAvg, "Buy Average", colorGreen, ParamStyle("Style") );
Plot( SellAvg, "Sell Average", colorRed, ParamStyle("Style") );
Plot( LongStopAvg, "Long Stop", colorPink, ParamStyle("Style") );
Plot( ShortStopAvg, "Short Stop", colorPaleGreen, ParamStyle("Style") );
PlotShapes (IIf(Buy,shapeUpArrow,shapeNone), colorGreen,0,Low );
PlotShapes (IIf(Sell,shapeHollowDownArro w,shapeNone), colorRed,0,High);
PlotShapes (IIf(Short,shapeDownArrow,shapeNone), colorRed,0,High );
PlotShapes (IIf(Cover,shapeHollowUpArrow,shapeNone), colorGreen,0,Low);
PositionSize = MarginDeposit;
"BuyAvg: " + NumToStr (BuyAvg, 1.2);
"SellAvg: " + NumToStr (SellAvg, 1.2) ;
"LongStopAvg: " + NumToStr (LongStopAvg, 1.2);
"ShortStopAvg: " + NumToStr (ShortStopAvg, 1.2);
"BuyCondition: " + NumToStr (BuyCondition, 1);
"ShortCondition: " + NumToStr (ShortCondition, 1);
"Short: " + NumToStr (Short, 1);
"LongStopCondition: " + NumToStr (LongStopcondition, 1);
"ShortStopCondition : " + NumToStr (ShortStopCondition , 1);
"LongTarget: " + NumToStr (LongTarget, 1.2);
"ShortTarget: " + NumToStr (ShortTarget, 1.2);
"LongProfitConditio n: " + NumToStr (LongProfitConditio n, 1);
"ShortProfitConditi on: " + NumToStr (ShortProfitConditi on, 1);
