Expert Advisors Based on Popular Trading Systems and Alchemy of Trading Robot Optimization (Part VII)
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Introduction
Thus, MetaQuotes Software Corp. opened registration for participating in the Automated Trading Championship 2008 on the 1st of July 2008! It would be a bit inconsequential of me to miss such an opportunity and not to continue the series of my articles with the representation of the logic of building an EA that would formally meet all Rules of the Automated Trading Championship 2008 and that wouldn't admit any critical error during the contest, for which it could be disqualified!
It is quite natural that for realization of this event I am using the simplest algorithms of opening positions, the trade factors of which will not be really interesting to us in the context of this article, while the most elementary little things may become most important for searching examination, because they can put one's participation in the Championship forward to several years later!
General Idea of Writing an EA
In my opinion, it would be most demonstrative, in our case, to sketch such an Expert Advisor with a detailed description of its construction that actually provides its correct behavior in its interaction with the trade server. The Rules of the Championship determine the amount of open positions and pending orders placed simultaneously to be equal to three. So it would be reasonable to use three strategies in one EA, one strategy per position.
We will use the same algorithms with different parameters for opening long and short positions, while making these algorithms open only one position at a time requires from us assigning them the same magic numbers. Thus, we will have six algorithms to enter the market and only three magic numbers! As an entering algorithm, I use a trading system based on change the moving average direction from my very first article in this series. To make the algorithm differ from each other, I use different moving averages in them!
Expert Advisor Code
Below is a version of the EA code:
//+==================================================================+ //| Exp_16_Champ.mq4 | //| Copyright © 2008, Nikolay Kositsin | //| Khabarovsk, farria@mail.redcom.ru | //+==================================================================+ #property copyright "Copyright © 2008, Nikolay Kositsin" #property link "farria@mail.redcom.ru" //----+ +-----------------------------------------------------------------------+ //---- EXPERT ADVISOR'S INPUTS FOR BUY TRADES extern bool Test_Up1 = true;//a filter for trades calculation direction extern int Timeframe_Up1 = 60; extern double Money_Management_Up1 = 0.1; extern int Length_Up1 = 4; // smoothing depth extern int Phase_Up1 = 100; // parameter ranging within //-100 ... +100, it affects the quality of the transient process; extern int IPC_Up1 = 0;/* Choosing prices to calculate the indicator on (0-CLOSE, 1-OPEN, 2-HIGH, 3-LOW, 4-MEDIAN, 5-TYPICAL, 6-WEIGHTED, 7-Heiken Ashi Close, 8-SIMPL, 9-TRENDFOLLOW, 10-0.5*TRENDFOLLOW, 11-Heiken Ashi Low, 12-Heiken Ashi High, 13-Heiken Ashi Open, 14-Heiken Ashi Close.) */ extern int STOPLOSS_Up1 = 50; // StopLoss extern int TAKEPROFIT_Up1 = 100; // TakeProfit extern bool ClosePos_Up1 = true; // enable forcible closing the position //----+ +-----------------------------------------------------------------------+ //---- EXPERT ADVISOR'S INPUTS FOR SELL TRADES extern bool Test_Dn1 = true;//a filter for trades calculation direction extern int Timeframe_Dn1 = 60; extern double Money_Management_Dn1 = 0.1; extern int Length_Dn1 = 4; // smoothing depth extern int Phase_Dn1 = 100; // parameter ranging within // -100 ... +100, it affects the quality of the transient process; extern int IPC_Dn1 = 0;/* Choosing prices to calculate the indicator on (0-CLOSE, 1-OPEN, 2-HIGH, 3-LOW, 4-MEDIAN, 5-TYPICAL, 6-WEIGHTED, 7-Heiken Ashi Close, 8-SIMPL, 9-TRENDFOLLOW, 10-0.5*TRENDFOLLOW, 11-Heiken Ashi Low, 12-Heiken Ashi High, 13-Heiken Ashi Open, 14-Heiken Ashi Close.) */ extern int STOPLOSS_Dn1 = 50; // StopLoss extern int TAKEPROFIT_Dn1 = 100; // TakeProfit extern bool ClosePos_Dn1 = true; // enable forcible closing the position //----+ +-----------------------------------------------------------------------+ //---- EXPERT ADVISOR'S INPUTS FOR BUY TRADES extern bool Test_Up2 = true;//a filter for trades calculation direction extern int Timeframe_Up2 = 60; extern double Money_Management_Up2 = 0.1; extern int Length1_Up2 = 4; // first smoothing depth extern int Phase1_Up2 = 100; // parameter of the first smoothing, //ranging within -100 ... +100, it affects the quality //of the averaging transient; extern int Length2_Up2 = 4; // second smoothing depth extern int Phase2_Up2 = 100; // parameter of the second smoothing, //ranging within -100 ... +100, it affects the quality //of the averaging transient; extern int IPC_Up2 = 0;/* Choosing prices to calculate the indicator on (0-CLOSE, 1-OPEN, 2-HIGH, 3-LOW, 4-MEDIAN, 5-TYPICAL, 6-WEIGHTED, 7-Heiken Ashi Close, 8-SIMPL, 9-TRENDFOLLOW, 10-0.5*TRENDFOLLOW, 11-Heiken Ashi Low, 12-Heiken Ashi High, 13-Heiken Ashi Open, 14-Heiken Ashi Close.) */ extern int STOPLOSS_Up2 = 50; // StopLoss extern int TAKEPROFIT_Up2 = 100; // TakeProfit extern bool ClosePos_Up2 = true; // enable forcible closing the position //----+ +-----------------------------------------------------------------------+ //---- EXPERT ADVISOR'S INPUTS FOR SELL TRADES extern bool Test_Dn2 = true;//a filter for trades calculation direction extern int Timeframe_Dn2 = 60; extern double Money_Management_Dn2 = 0.1; extern int Length1_Dn2 = 4; // smoothing depth extern int Phase1_Dn2 = 100; // parameter of the first smoothing, //ranging within -100 ... +100, it affects the quality //of the averaging transient; extern int Length2_Dn2 = 4; // smoothing depth extern int Phase2_Dn2 = 100; // parameter of the second smoothing, //ranging within -100 ... +100, it affects the quality //of the averaging transient; extern int IPC_Dn2 = 0;/* Choosing prices to calculate the indicator on (0-CLOSE, 1-OPEN, 2-HIGH, 3-LOW, 4-MEDIAN, 5-TYPICAL, 6-WEIGHTED, 7-Heiken Ashi Close, 8-SIMPL, 9-TRENDFOLLOW, 10-0.5*TRENDFOLLOW, 11-Heiken Ashi Low, 12-Heiken Ashi High, 13-Heiken Ashi Open, 14-Heiken Ashi Close.) */ extern int STOPLOSS_Dn2 = 50; // StopLoss extern int TAKEPROFIT_Dn2 = 100; // TakeProfit extern bool ClosePos_Dn2 = true; // enable forcible closing the position //----+ +-----------------------------------------------------------------------+ //---- EXPERT ADVISOR'S INPUTS FOR BUY TRADES extern bool Test_Up3 = true;//a filter for trades calculation direction extern int Timeframe_Up3 = 60; extern double Money_Management_Up3 = 0.1; extern int Period_Up3 = 10; // LSMA period extern int Length_Up3 = 4; // smoothing depth extern int Phase_Up3 = 100; // parameter of smoothing, //ranging within -100 ... +100, it affects the quality //of the averaging transient; extern int IPC_Up3 = 0;/* Choosing prices to calculate the indicator on (0-CLOSE, 1-OPEN, 2-HIGH, 3-LOW, 4-MEDIAN, 5-TYPICAL, 6-WEIGHTED, 7-Heiken Ashi Close, 8-SIMPL, 9-TRENDFOLLOW, 10-0.5*TRENDFOLLOW, 11-Heiken Ashi Low, 12-Heiken Ashi High, 13-Heiken Ashi Open, 14-Heiken Ashi Close.) */ extern int STOPLOSS_Up3 = 50; // StopLoss extern int TAKEPROFIT_Up3 = 100; // TakeProfit extern bool ClosePos_Up3 = true; // enable forcible closing the position //----+ +-----------------------------------------------------------------------+ //---- EXPERT ADVISOR'S INPUTS FOR SELL TRADES extern bool Test_Dn3 = true;//a filter for trades calculation direction extern int Timeframe_Dn3 = 60; extern double Money_Management_Dn3 = 0.1; extern int Period_Dn3 = 10; // LSMA period extern int Length_Dn3 = 4; // smoothing depth extern int Phase_Dn3 = 100; // parameter smoothing, //ranging within -100 ... +100, it affects the quality //of the averaging transient; extern int IPC_Dn3 = 0;/* Choosing prices to calculate the indicator on (0-CLOSE, 1-OPEN, 2-HIGH, 3-LOW, 4-MEDIAN, 5-TYPICAL, 6-WEIGHTED, 7-Heiken Ashi Close, 8-SIMPL, 9-TRENDFOLLOW, 10-0.5*TRENDFOLLOW, 11-Heiken Ashi Low, 12-Heiken Ashi High, 13-Heiken Ashi Open, 14-Heiken Ashi Close.) */ extern int STOPLOSS_Dn3 = 50; // StopLoss extern int TAKEPROFIT_Dn3 = 100; // TakeProfit extern bool ClosePos_Dn3 = true; // enable forcible closing the position //----+ +-----------------------------------------------------------------------+ //---- Integer variables for the minimum of estimated bars int MinBar_Up1, MinBar_Up2, MinBar_Up3; int MinBar_Dn1, MinBar_Dn2, MinBar_Dn3; //+==================================================================+ //| Custom Expert functions | //+==================================================================+ #include <Lite_EXPERT_Champ.mqh> //+==================================================================+ //| TimeframeCheck() functions | //+==================================================================+ void TimeframeCheck(string Name, int Timeframe) { //----+ //---- Checking the value of the 'Timeframe' variable for correctness if (Timeframe != 1) if (Timeframe != 5) if (Timeframe != 15) if (Timeframe != 30) if (Timeframe != 60) if (Timeframe != 240) if (Timeframe != 1440) Print(StringConcatenate("Parameter ",Name, " cannot ", "be equal to ", Timeframe, "!!!")); //----+ } //+==================================================================+ //| Custom Expert initialization function | //+==================================================================+ int init() { //---- Checking the values of short-position timeframe variables for correctness TimeframeCheck("Timeframe_Up1", Timeframe_Up1); TimeframeCheck("Timeframe_Up2", Timeframe_Up2); TimeframeCheck("Timeframe_Up3", Timeframe_Up3); //---- Checking the values of long-position timeframe variables for correctness TimeframeCheck("Timeframe_Dn1", Timeframe_Dn1); TimeframeCheck("Timeframe_Dn2", Timeframe_Dn2); TimeframeCheck("Timeframe_Dn3", Timeframe_Dn3); //---- Initialization of variables MinBar_Up1 = 4 + 39 + 30; MinBar_Up2 = 4 + 30; MinBar_Up3 = 4 + Period_Up3 + 30; MinBar_Dn1 = 4 + 39 + 30; MinBar_Dn2 = 4 + 30; MinBar_Dn3 = 4 + Period_Dn3 + 30; //---- initialization complete return(0); } //+==================================================================+ //| expert deinitialization function | //+==================================================================+ int deinit() { //----+ //---- Expert Advisor initialization complete return(0); //----+ } //+==================================================================+ //| Custom Expert iteration function | //+==================================================================+ int start() { //----+ Declaration of local variables int bar; double Mov[3], dMov12, dMov23; //----+ Declaration of static variables static int LastBars_Up1, LastBars_Dn1; static int LastBars_Up2, LastBars_Dn2; static int LastBars_Up3, LastBars_Dn3; static bool BUY_Sign1, BUY_Stop1, SELL_Sign1, SELL_Stop1; static bool BUY_Sign2, BUY_Stop2, SELL_Sign2, SELL_Stop2; static bool BUY_Sign3, BUY_Stop3, SELL_Sign3, SELL_Stop3; //+------------------------------------------------------------------------+ //----++ CODE FOR LONG POSITIONS if (Test_Up1) { int IBARS_Up1 = iBars(NULL, Timeframe_Up1); if (IBARS_Up1 >= MinBar_Up1) { if (LastBars_Up1 != IBARS_Up1) { //----+ Initialization of variables BUY_Sign1 = false; BUY_Stop1 = false; LastBars_Up1 = IBARS_Up1; //----+ CALCULATING THE INDICATORS' VALUES AND LOADING THEM TO BUFFERS for(bar = 1; bar <= 3; bar++) Mov[bar - 1]= iCustom(NULL, Timeframe_Up1, "JFatl", Length_Up1, Phase_Up1, 0, IPC_Up1, 0, bar); //----+ DETERMINING SIGNALS FOR TRADES dMov12 = Mov[0] - Mov[1]; dMov23 = Mov[1] - Mov[2]; if (dMov23 < 0) if (dMov12 > 0) BUY_Sign1 = true; if (dMov12 < 0) BUY_Stop1 = true; } //----+ MAKING TRADES if (!OpenBuyOrder_Ch(BUY_Sign1, 1, Money_Management_Up1, STOPLOSS_Up1, TAKEPROFIT_Up1)) return(-1); if (ClosePos_Up1) if (!CloseOrder_Ch(BUY_Stop1, 1)) return(-1); } } //----++ CODE FOR SHORT POSITIONS if (Test_Dn1) { int IBARS_Dn1 = iBars(NULL, Timeframe_Dn1); if (IBARS_Dn1 >= MinBar_Dn1) { if (LastBars_Dn1 != IBARS_Dn1) { //----+ Initialization of variables SELL_Sign1 = false; SELL_Stop1 = false; LastBars_Dn1 = IBARS_Dn1; //----+ CALCULATING THE INDICATORS' VALUES AND LOADING THEM TO BUFFERS for(bar = 1; bar <= 3; bar++) Mov[bar - 1]= iCustom(NULL, Timeframe_Dn1, "JFatl", Length_Dn1, Phase_Dn1, 0, IPC_Dn1, 0, bar); //----+ DETERMINING SIGNALS FOR TRADES dMov12 = Mov[0] - Mov[1]; dMov23 = Mov[1] - Mov[2]; if (dMov23 > 0) if (dMov12 < 0) SELL_Sign1 = true; if (dMov12 > 0) SELL_Stop1 = true; } //----+ MAKING TRADES if (!OpenSellOrder_Ch(SELL_Sign1, 1, Money_Management_Dn1, STOPLOSS_Dn1, TAKEPROFIT_Dn1)) return(-1); if (ClosePos_Dn1) if (!CloseOrder_Ch(SELL_Stop1, 1)) return(-1); } } //+------------------------------------------------------------------------+ //----++ CODE FOR LONG POSITIONS if (Test_Up2) { int IBARS_Up2 = iBars(NULL, Timeframe_Up2); if (IBARS_Up2 >= MinBar_Up2) { if (LastBars_Up2 != IBARS_Up2) { //----+ Initialization of variables BUY_Sign2 = false; BUY_Stop2 = false; LastBars_Up2 = IBARS_Up2; //----+ CALCULATING THE INDICATORS' VALUES AND LOADING THEM TO BUFFERS for(bar = 1; bar <= 3; bar++) Mov[bar - 1]= iCustom(NULL, Timeframe_Up2, "J2JMA", Length1_Up2, Length2_Up2, Phase1_Up2, Phase2_Up2, 0, IPC_Up2, 0, bar); //----+ DETERMINING SIGNALS FOR TRADES dMov12 = Mov[0] - Mov[1]; dMov23 = Mov[1] - Mov[2]; if (dMov23 < 0) if (dMov12 > 0) BUY_Sign2 = true; if (dMov12 < 0) BUY_Stop2 = true; } //----+ MAKING TRADES if (!OpenBuyOrder_Ch(BUY_Sign2, 2, Money_Management_Up2, STOPLOSS_Up2, TAKEPROFIT_Up2)) return(-1); if (ClosePos_Up2) if (!CloseOrder_Ch(BUY_Stop2, 2)) return(-1); } } //----++ CODE FOR SHORT POSITIONS if (Test_Dn2) { int IBARS_Dn2 = iBars(NULL, Timeframe_Dn2); if (IBARS_Dn2 >= MinBar_Dn2) { if (LastBars_Dn2 != IBARS_Dn2) { //----+ Initialization of variables SELL_Sign2 = false; SELL_Stop2 = false; LastBars_Dn2 = IBARS_Dn2; //----+ CALCULATING THE INDICATORS' VALUES AND LOADING THEM TO BUFFERS for(bar = 1; bar <= 3; bar++) Mov[bar - 1]= iCustom(NULL, Timeframe_Dn2, "J2JMA", Length1_Dn2, Length2_Dn2, Phase1_Dn2, Phase2_Dn2, 0, IPC_Dn2, 0, bar); //----+ DETERMINING SIGNALS FOR TRADES dMov12 = Mov[0] - Mov[1]; dMov23 = Mov[1] - Mov[2]; if (dMov23 > 0) if (dMov12 < 0) SELL_Sign2 = true; if (dMov12 > 0) SELL_Stop2 = true; } //----+ MAKING TRADES if (!OpenSellOrder_Ch(SELL_Sign2, 2, Money_Management_Dn2, STOPLOSS_Dn2, TAKEPROFIT_Dn2)) return(-1); if (ClosePos_Dn2) if (!CloseOrder_Ch(SELL_Stop2, 2)) return(-1); } } //+------------------------------------------------------------------------+ //----++ CODE FOR LONG POSITIONS if (Test_Up3) { int IBARS_Up3 = iBars(NULL, Timeframe_Up3); if (IBARS_Up3 >= MinBar_Up3) { if (LastBars_Up3 != IBARS_Up3) { //----+ Initialization of variables BUY_Sign3 = false; BUY_Stop3 = false; LastBars_Up3 = IBARS_Up3; //----+ CALCULATING THE INDICATORS' VALUES AND LOADING THEM TO BUFFERS for(bar = 1; bar <= 3; bar++) Mov[bar - 1]= iCustom(NULL, Timeframe_Up3, "JLSMA", Period_Up3, Length_Up3, Phase_Up3, 0, IPC_Up3, 0, bar); //----+ DETERMINING SIGNALS FOR TRADES dMov12 = Mov[0] - Mov[1]; dMov23 = Mov[1] - Mov[2]; if (dMov23 < 0) if (dMov12 > 0) BUY_Sign3 = true; if (dMov12 < 0) BUY_Stop3 = true; } //----+ MAKING TRADES if (!OpenBuyOrder_Ch(BUY_Sign3, 3, Money_Management_Up3, STOPLOSS_Up3, TAKEPROFIT_Up3)) return(-1); if (ClosePos_Up3) if (!CloseOrder_Ch(BUY_Stop3, 3)) return(-1); } } //----++ CODE FOR SHORT POSITIONS if (Test_Dn3) { int IBARS_Dn3 = iBars(NULL, Timeframe_Dn3); if (IBARS_Dn3 >= MinBar_Dn3) { if (LastBars_Dn3 != IBARS_Dn3) { //----+ Initialization of variables SELL_Sign3 = false; SELL_Stop3 = false; LastBars_Dn3 = IBARS_Dn3; //----+ CALCULATING THE INDICATORS' VALUES AND LOADING THEM TO BUFFERS for(bar = 1; bar <= 3; bar++) Mov[bar - 1]= iCustom(NULL, Timeframe_Dn3, "JLSMA", Period_Dn3, Length_Dn3, Phase_Dn3, 0, IPC_Dn3, 0, bar); //----+ DETERMINING SIGNALS FOR TRADES dMov12 = Mov[0] - Mov[1]; dMov23 = Mov[1] - Mov[2]; if (dMov23 > 0) if (dMov12 < 0) SELL_Sign3 = true; if (dMov12 > 0) SELL_Stop3 = true; } //----+ MAKING TRADES if (!OpenSellOrder_Ch(SELL_Sign3, 3, Money_Management_Dn3, STOPLOSS_Dn3, TAKEPROFIT_Dn3)) return(-1); if (ClosePos_Dn3) if (!CloseOrder_Ch(SELL_Stop3, 3)) return(-1); } } //+------------------------------------------------------------------------+ //----+ return(0); } //+------------------------------------------------------------------+
Those who want to have an EA without the limitations stated by the Championship can go in for Exp_16.mq4. In fact, we can see the diversification of trading strategies among three algorithms differing from each other in a certain way. Generally, we have three absolutely independent automated trading strategies in one Expert Advisor. When writing the code, I modified the names of variables in each ATS to avoid coincidences.
To make trades, I used functions similar to those in file Lite_EXPERT1.mqh, which are represented by file Lite_EXPERT_Champ.mqh. These functions required minimal changes and corrections in their codes to meet the requirements of the Championship. Alone using the code of such functions in the codes of other Participants' EAs is quite legal, since they are just executive elements of the EA, which have no relation to its intellectual filling that actually controls these elements!
So there is no special need to get into all details of these functions or creating something similar and still your own. It would be quite sufficient to read my previous articles in this series to be able to use them. Generally speaking, the use of such functions in writing EAs is as effective as the use of chips in developing and manufacturing electronic devices.
Below is a brief description of what has been considered in the construction of these functions.
1. All functions for opening positions and placing pending orders detect the amount of already opened positions and placed pending orders and, if their amount exceeds two, don't take any actions.
2. The minimal distance from the order open price, at which functions OpenBuyOrder_Ch(), OpenSellOrder_Ch(), OpenBuyLimitOrder_Ch(), OpenBuyStopOrder_Ch(), OpenSellLimitOrder_Ch() and OpenSellStopOrder_Ch() place TakeProfit, is always larger than that defined by the Championship Rules as a scalping one. The minimal distance fo StopLoss is determined by the properties of the traded symbol and is requested from the server. This also relates to pending orders. However, you should consider the fact that pending orders are sometimes processed at prices that turn out to be worse than the requested ones. Your TakeProfits may get into the 'range' of a scalping strategy, in this case! So it would be better to stay away from scalping strategies. Otherwise, at a fair number of gaps (which is quite possible at the end of year), you can find out that your EA has directly come under the definition of a scalping strategy!
However, it would be instructive to recall that, if TakeProfits are too large, the EA may make too few trades, which may cause its disqualification, too!
3. The smallest and the largest size of a position to be opened, as well as the minimal step of changes, determined by the Championship Rules are written in all these functions with the values of the variables to be initialized. So such errors have already been avoided!
4. Prior to opening a position, functions OpenBuyOrder_Ch() and OpenSellOrder_Ch() check the size of this position and check the position itself for the presence of enough money on the deposit for such a size, and reduce the amount of lots to acceptable values. So, when working with this functions, your EA is safe from errors like "invalid trade volume", in any case. Unfortunately, it is impossible to correct the lot size in pending orders in this manner, since it is impossible to forecast the amount of free assets on the deposit as of the moment the pending order triggers. So an EA writer must be very attentive when initializing external variables 'Money_Management' of functions OpenBuyLimitOrder_Ch(), OpenBuyStopOrder_Ch(), OpenSellLimitOrder_Ch() and OpenSellStopOrder_Ch(), especially for the large values of StopLosses.
5. All functions for positions management hold correct pauses between trades according to the codes of errors occurring.
6. Prior to closing a position or deleting a pending order, or moving the StopLosses, functions CloseOrder_Ch(), CloseOrder_Ch() and Make_TreilingStop_Ch() check the position for being freezed and, if it is freezed, they don't take any actions.
7. Prior to closing a position, function CloseOrder_Ch() checks its net surplus for not being scalping-like. If the position turns out to be within the scalping range, it does not take any actions.
8. Function Make_TreilingStop_Ch() does not move the StopLoss into the price range within which the profit of the position closed by this StopLoss may get into the 'scalping range'.
Conclusion
Well, there is all there is to what I wanted to tell about the exemplary behavior of an EA on the Automated Trading Championship. Of course, there is one more, rather actual problem that relates to the EA's luxury consumption of CPU resources. However, in most cases, this problem often depends on ineffectively written indicators the EA calls during its operations. And this is an absolutely different pair of shoes.
Translated from Russian by MetaQuotes Software Corp.
Original article: http://articles.mql4.com/ru/articles/1542
Translated from Russian by MetaQuotes Ltd.
Original article: https://www.mql5.com/ru/articles/1542
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Dear all! Now you can have all attached files with English comments on them.
Sorry for this delay.
Dear all! Now you can have all attached files with English comments on them.
Sorry for this delay.
Are the "English" commented versions of the attachements found in this article applicable to all articles in this series or does each article have their own and different version of the attachements. That is, do I need to download the attachements for each article--(because they are all unique)--or does this last "English" commented version cover all articles attachments?
Thanks,
Payne
Hi Nikolay Kositsin,
I've got this error during compile...
Function "DeleteOrder1" is not referenced and will be removed from exp-file
Function "OpenBuyLimitOrder1" is not referenced and will be removed from exp-file
Can you pls include installation instructions??? Thx...
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