253 lines
12 KiB
MQL5
253 lines
12 KiB
MQL5
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//+------------------------------------------------------------------+
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//| MA_Cross.mqh |
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//| Copyright 2012, MetaQuotes Software Corp. |
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//| http://www.mql5.com |
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//+------------------------------------------------------------------+
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#property copyright "Copyright 2012, MetaQuotes Software Corp."
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#property link "http://www.mql5.com"
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#property version "1.00"
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#include "..\ExpertSignal.mqh" // The CExpertSignal class is in the file ExpertSignal
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#property tester_indicator "Examples\\Custom Moving Average.ex5"
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//+------------------------------------------------------------------+
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//| |
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//+------------------------------------------------------------------+
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// wizard description start
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//+------------------------------------------------------------------+
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//| Description of the class |
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//| Title=Signals at the intersection of two MAs |
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//| Type=SignalAdvanced |
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//| Name=My_MA_Cross |
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//| ShortName=MaCross |
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//| Class=MA_Cross |
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//| Page=Not needed |
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//| Parameter=FastPeriod,int,13,Period of fast MA |
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//| Parameter=FastMethod,ENUM_MA_METHOD,MODE_SMA,Method of fast MA |
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//| Parameter=SlowPeriod,int,21,Period of slow MA |
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//| Parameter=SlowMethod,ENUM_MA_METHOD,MODE_SMA,Method of slow MA |
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//+------------------------------------------------------------------+
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// wizard description end
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//+------------------------------------------------------------------+
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//| |
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//+------------------------------------------------------------------+
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class MA_Cross : public CExpertSignal
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{
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private:
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CiCustom m_fast_ma; // The indicator as an object
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CiCustom m_slow_ma; // The indicator as an object
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//--- Configurable module parameters
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int m_period_fast; // Period of the fast MA
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ENUM_MA_METHOD m_method_fast; // Type of smoothing of the fast MA
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int m_period_slow; // Period of the slow MA
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ENUM_MA_METHOD m_method_slow; // Type of smoothing of the slow MA
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public:
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//--- Constructor of class
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MA_Cross(void);
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//--- Destructor of class
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~MA_Cross(void);
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//--- Methods for placing
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void FastPeriod(const int value) { m_period_fast=value; }
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void FastMethod(const ENUM_MA_METHOD value) { m_method_fast=value; }
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void SlowPeriod(const int value) { m_period_slow=value; }
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void SlowMethod(const ENUM_MA_METHOD value) { m_method_slow=value; }
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//--- Checking correctness of input data
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bool ValidationSettings(void);
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//--- Creating indicators and timeseries for the module of signals
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bool InitIndicators(CIndicators *indicators);
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//--- Access to indicator data
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double FastMA(const int index) const { return(m_fast_ma.GetData(0,index)); }
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double SlowMA(const int index) const { return(m_slow_ma.GetData(0,index)); }
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//--- Checking Buy and Sell conditions
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virtual int LongCondition();
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virtual int ShortCondition();
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protected:
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//--- Creating MA indicators
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bool CreateFastMA(CIndicators *indicators);
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bool CreateSlowMA(CIndicators *indicators);
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};
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//+------------------------------------------------------------------+
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//| Constructor |
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//+------------------------------------------------------------------+
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MA_Cross::MA_Cross(void) : m_period_fast(13),
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m_method_fast(MODE_SMA),
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m_period_slow(21),
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m_method_slow(MODE_SMA)
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{
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}
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//+------------------------------------------------------------------+
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//| Destructor |
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//+------------------------------------------------------------------+
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MA_Cross::~MA_Cross(void)
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{
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}
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//+------------------------------------------------------------------+
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//| Checks input parameters and returns true if everything is OK |
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//+------------------------------------------------------------------+
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bool MA_Cross::ValidationSettings(void)
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{
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//--- Call the base class method
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if(!CExpertSignal::ValidationSettings()) return(false);
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//--- Check periods, number of bars for the calculation of the MA >=1
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if(m_period_fast<1 || m_period_slow<1)
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{
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PrintFormat("Incorrect value set for one of the periods! FastPeriod=%d, SlowPeriod=%d",
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m_period_fast,m_period_slow);
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return false;
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}
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//--- Slow MA period must be greater that the fast MA period
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if(m_period_fast>m_period_slow)
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{
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PrintFormat("SlowPeriod=%d must be greater than FastPeriod=%d!",
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m_period_slow,m_period_fast);
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return false;
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}
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//--- Fast MA smoothing type must be one of the four values of the enumeration
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if(m_method_fast!=MODE_SMA && m_method_fast!=MODE_EMA && m_method_fast!=MODE_SMMA && m_method_fast!=MODE_LWMA)
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{
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PrintFormat("Invalid type of smoothing of the fast MA!");
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return false;
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}
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//--- Show MA smoothing type must be one of the four values of the enumeration
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if(m_method_slow!=MODE_SMA && m_method_slow!=MODE_EMA && m_method_slow!=MODE_SMMA && m_method_slow!=MODE_LWMA)
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{
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PrintFormat("Invalid type of smoothing of the slow MA!");
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return false;
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}
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//--- All checks are completed, everything is ok
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return true;
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}
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//+------------------------------------------------------------------+
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//| Creates indicators |
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//| Input: a pointer to a collection of indicators |
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//| Output: true if successful, otherwise false |
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//+------------------------------------------------------------------+
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bool MA_Cross::InitIndicators(CIndicators *indicators)
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{
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//--- Standard check of the collection of indicators for NULL
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if(indicators==NULL) return(false);
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//--- Initializing indicators and timeseries in additional filters
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if(!CExpertSignal::InitIndicators(indicators)) return(false);
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//--- Creating our MA indicators
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if(!CreateFastMA(indicators)) return(false);
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if(!CreateSlowMA(indicators)) return(false);
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//--- Reached this part, so the function was successful, return true
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return(true);
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}
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//+------------------------------------------------------------------+
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//| Creates the "Fast MA" indicator |
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//+------------------------------------------------------------------+
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bool MA_Cross::CreateFastMA(CIndicators *indicators)
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{
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//--- Checking the pointer
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if(indicators==NULL) return(false);
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//--- Adding an object to the collection
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if(!indicators.Add(GetPointer(m_fast_ma)))
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{
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printf(__FUNCTION__+": Error adding an object of the fast MA");
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return(false);
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}
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//--- Setting parameters of the fast MA
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MqlParam parameters[4];
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//---
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parameters[0].type=TYPE_STRING;
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parameters[0].string_value="Examples\\Custom Moving Average.ex5";
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parameters[1].type=TYPE_INT;
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parameters[1].integer_value=m_period_fast; // Period
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parameters[2].type=TYPE_INT;
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parameters[2].integer_value=0; // Shift
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parameters[3].type=TYPE_INT;
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parameters[3].integer_value=m_method_fast; // Method of averaging
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//--- Object initialization
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if(!m_fast_ma.Create(m_symbol.Name(),m_period,IND_CUSTOM,4,parameters))
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{
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printf(__FUNCTION__+": Error initializing the object of the fast MA");
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return(false);
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}
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//--- Number of buffers
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if(!m_fast_ma.NumBuffers(1)) return(false);
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//--- Reached this part, so the function was successful, return true
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return(true);
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}
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//+------------------------------------------------------------------+
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//| Creates the "Slow MA" indicator |
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//+------------------------------------------------------------------+
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bool MA_Cross::CreateSlowMA(CIndicators *indicators)
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{
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//--- Checking the pointer
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if(indicators==NULL) return(false);
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//--- Adding an object to the collection
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if(!indicators.Add(GetPointer(m_slow_ma)))
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{
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printf(__FUNCTION__+": Error adding an object of the slow MA");
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return(false);
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}
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//--- Setting parameters of the slow MA
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MqlParam parameters[4];
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//---
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parameters[0].type=TYPE_STRING;
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parameters[0].string_value="Examples\\Custom Moving Average.ex5";
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parameters[1].type=TYPE_INT;
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parameters[1].integer_value=m_period_slow; // Period
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parameters[2].type=TYPE_INT;
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parameters[2].integer_value=0; // Shift
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parameters[3].type=TYPE_INT;
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parameters[3].integer_value=m_method_slow; // Method of averaging
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//--- Object initialization
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if(!m_slow_ma.Create(m_symbol.Name(),m_period,IND_CUSTOM,4,parameters))
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{
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printf(__FUNCTION__+": Error initializing the object of the slow MA");
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return(false);
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}
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//--- Number of buffers
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if(!m_slow_ma.NumBuffers(1)) return(false);
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//--- Reached this part, so the function was successful, return true
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return(true);
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}
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//+------------------------------------------------------------------+
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//| Returns the strength of the buy signal |
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//+------------------------------------------------------------------+
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int MA_Cross::LongCondition()
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{
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int signal=0;
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//--- For operation with ticks idx=0, for operation with formed bars idx=1
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int idx=StartIndex();
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//--- Values of MAs at the last formed bar
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double last_fast_value=FastMA(idx);
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double last_slow_value=SlowMA(idx);
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//--- Values of MAs at the last but one formed bar
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double prev_fast_value=FastMA(idx+1);
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double prev_slow_value=SlowMA(idx+1);
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//--- If the fast MA crossed the slow MA from bottom upwards on the last two closed bars
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if((last_fast_value>last_slow_value) && (prev_fast_value<prev_slow_value))
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{
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signal=100; // There is a signal to buy
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}
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//--- Return the signal value
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return(signal);
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}
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//+------------------------------------------------------------------+
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//| Returns the strength of the sell signal |
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//+------------------------------------------------------------------+
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int MA_Cross::ShortCondition()
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{
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int signal=0;
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//--- For operation with ticks idx=0, for operation with formed bars idx=1
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int idx=StartIndex();
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//--- Values of MAs at the last formed bar
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double last_fast_value=FastMA(idx);
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double last_slow_value=SlowMA(idx);
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//--- Values of MAs at the last but one formed bar
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double prev_fast_value=FastMA(idx+1);
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double prev_slow_value=SlowMA(idx+1);
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//--- If the fast MA crossed the slow MA from up downwards on the last two closed bars
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if((last_fast_value<last_slow_value) && (prev_fast_value>prev_slow_value))
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{
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signal=100; // There is a signal to sell
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}
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//--- Return the signal value
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return(signal);
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}
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//+------------------------------------------------------------------+
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