289 lines
11 KiB
MQL5
289 lines
11 KiB
MQL5
 | //+------------------------------------------------------------------+
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//| SignalBearsPower.mqh |
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//| Copyright 2000-2025, MetaQuotes Ltd. |
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//| https://www.mql5.com |
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//+------------------------------------------------------------------+
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#include <Expert\ExpertSignal.mqh>
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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 of oscillator 'Bears Power' |
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//| Type=SignalAdvanced |
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//| Name=Bears Power |
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//| ShortName=BearsPower |
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//| Class=CSignalBearsPower |
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//| Page=signal_bears |
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//| Parameter=PeriodBears,int,13,Period of calculation |
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//+------------------------------------------------------------------+
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// wizard description end
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//+------------------------------------------------------------------+
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//| Class CSignalBearsPower. |
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//| Purpose: Class of generator of trade signals based on |
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//| the 'Bears Power' oscillator. |
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//| Is derived from the CExpertSignal class. |
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//+------------------------------------------------------------------+
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class CSignalBearsPower : public CExpertSignal
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{
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protected:
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CiBearsPower m_bears; // object-oscillator
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//--- adjusted parameters
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int m_period_bears; // the "period of calculation" parameter of the oscillator
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//--- "weights" of market models (0-100)
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int m_pattern_0; // model 0 "reverse of the oscillator to required direction"
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int m_pattern_1; // model 1 "divergence of the oscillator and price"
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//--- variables
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double m_extr_osc[10]; // array of values of extremums of the oscillator
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double m_extr_pr[10]; // array of values of the corresponding extremums of price
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int m_extr_pos[10]; // array of shifts of extremums (in bars)
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uint m_extr_map; // resulting bit-map of ratio of extremums of the oscillator and the price
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public:
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CSignalBearsPower(void);
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~CSignalBearsPower(void);
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//--- methods of setting adjustable parameters
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void PeriodBears(int value) { m_period_bears=value; }
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//--- methods of adjusting "weights" of market models
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void Pattern_0(int value) { m_pattern_0=value; }
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void Pattern_1(int value) { m_pattern_1=value; }
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//--- method of verification of settings
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virtual bool ValidationSettings(void);
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//--- method of creating the indicator and timeseries
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virtual bool InitIndicators(CIndicators *indicators);
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//--- methods of checking if the market models are formed
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virtual int LongCondition(void);
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//--- the oscillator doesn't identify conditions for selling
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protected:
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//--- method of initialization of the oscillator
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bool InitBears(CIndicators *indicators);
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//--- methods of getting data
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double Bears(int ind) { return(m_bears.Main(ind)); }
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double DiffBears(int ind) { return(Bears(ind)-Bears(ind+1)); }
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int StateBears(int ind);
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bool ExtStateBears(int ind);
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};
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//+------------------------------------------------------------------+
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//| Constructor |
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//+------------------------------------------------------------------+
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CSignalBearsPower::CSignalBearsPower(void) : m_period_bears(13),
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m_pattern_0(20),
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m_pattern_1(80)
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{
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//--- initialization of protected data
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m_used_series=USE_SERIES_HIGH+USE_SERIES_LOW;
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}
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//+------------------------------------------------------------------+
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//| Destructor |
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//+------------------------------------------------------------------+
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CSignalBearsPower::~CSignalBearsPower(void)
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{
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}
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//+------------------------------------------------------------------+
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//| Validation settings protected data. |
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//+------------------------------------------------------------------+
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bool CSignalBearsPower::ValidationSettings(void)
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{
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//--- validation settings of additional filters
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if(!CExpertSignal::ValidationSettings())
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return(false);
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//--- initial data checks
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if(m_period_bears<=0)
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{
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printf(__FUNCTION__+": period Bears must be greater than 0");
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return(false);
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}
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//--- ok
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return(true);
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}
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//+------------------------------------------------------------------+
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//| Create indicators. |
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//+------------------------------------------------------------------+
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bool CSignalBearsPower::InitIndicators(CIndicators *indicators)
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{
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//--- check pointer
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if(indicators==NULL)
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return(false);
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//--- initialization of indicators and timeseries of additional filters
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if(!CExpertSignal::InitIndicators(indicators))
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return(false);
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//--- create and initialize BearsPower oscillator
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if(!InitBears(indicators))
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return(false);
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//--- ok
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return(true);
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}
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//+------------------------------------------------------------------+
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//| Initialize BearsPower oscillators. |
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//+------------------------------------------------------------------+
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bool CSignalBearsPower::InitBears(CIndicators *indicators)
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{
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//--- check pointer
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if(indicators==NULL)
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return(false);
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//--- add object to collection
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if(!indicators.Add(GetPointer(m_bears)))
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{
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printf(__FUNCTION__+": error adding object");
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return(false);
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}
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//--- initialize object
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if(!m_bears.Create(m_symbol.Name(),m_period,m_period_bears))
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{
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printf(__FUNCTION__+": error initializing object");
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return(false);
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}
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//--- ok
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return(true);
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}
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//+------------------------------------------------------------------+
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//| Check of the oscillator state. |
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//+------------------------------------------------------------------+
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int CSignalBearsPower::StateBears(int ind)
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{
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int res=0;
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double var;
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//---
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for(int i=ind;;i++)
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{
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if(Bears(i+1)==EMPTY_VALUE)
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break;
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var=DiffBears(i);
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if(res>0)
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{
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if(var<0)
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break;
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res++;
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continue;
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}
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if(res<0)
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{
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if(var>0)
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break;
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res--;
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continue;
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}
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if(var>0)
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res++;
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if(var<0)
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res--;
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}
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//--- return the result
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return(res);
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}
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//+------------------------------------------------------------------+
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//| Extended check of the oscillator state consists |
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//| in forming a bit-map according to certain rules, |
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//| which shows ratios of extremums of the oscillator and price. |
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//+------------------------------------------------------------------+
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bool CSignalBearsPower::ExtStateBears(int ind)
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{
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//--- operation of this method results in a bit-map of extremums
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//--- practically, the bit-map of extremums is an "array" of 4-bit fields
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//--- each "element of the array" definitely describes the ratio
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//--- of current extremums of the oscillator and the price with previous ones
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//--- purpose of bits of an element of the analyzed bit-map
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//--- bit 3 - not used (always 0)
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//--- bit 2 - is equal to 1 if the current extremum of the oscillator is "more extreme" than the previous one
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//--- (a higher peak or a deeper valley), otherwise - 0
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//--- bit 1 - not used (always 0)
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//--- bit 0 - is equal to 1 if the current extremum of price is "more extreme" than the previous one
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//--- (a higher peak or a deeper valley), otherwise - 0
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//--- in addition to them, the following is formed:
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//--- array of values of extremums of the oscillator,
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//--- array of values of price extremums and
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//--- array of "distances" between extremums of the oscillator (in bars)
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//--- it should be noted that when using the results of the extended check of state,
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//--- you should consider, which extremum of the oscillator (peak or valley)
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//--- is the "reference point" (i.e. was detected first during the analysis)
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//--- if a peak is detected first then even elements of all arrays
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//--- will contain information about peaks, and odd elements will contain information about valleys
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//--- if a valley is detected first, then respectively in reverse
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int pos=ind,off,index;
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uint map; // intermediate bit-map for one extremum
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//---
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m_extr_map=0;
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for(int i=0;i<10;i++)
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{
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off=StateBears(pos);
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if(off>0)
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{
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//--- minimum of the oscillator is detected
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pos+=off;
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m_extr_pos[i]=pos;
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m_extr_osc[i]=Bears(pos);
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if(i>1)
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{
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m_extr_pr[i]=m_low.MinValue(pos-2,5,index);
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//--- form the intermediate bit-map
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map=0;
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if(m_extr_pr[i-2]<m_extr_pr[i])
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map+=1; // set bit 0
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if(m_extr_osc[i-2]<m_extr_osc[i])
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map+=4; // set bit 2
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//--- add the result
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m_extr_map+=map<<(4*(i-2));
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}
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else
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m_extr_pr[i]=m_low.MinValue(pos-1,4,index);
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}
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else
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{
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//--- maximum of the oscillator is detected
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pos-=off;
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m_extr_pos[i]=pos;
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m_extr_osc[i]=Bears(pos);
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if(i>1)
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{
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m_extr_pr[i]=m_high.MaxValue(pos-2,5,index);
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//--- form the intermediate bit-map
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map=0;
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if(m_extr_pr[i-2]>m_extr_pr[i])
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map+=1; // set bit 0
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if(m_extr_osc[i-2]>m_extr_osc[i])
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map+=4; // set bit 2
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//--- add the result
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m_extr_map+=map<<(4*(i-2));
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}
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else
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m_extr_pr[i]=m_high.MaxValue(pos-1,4,index);
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}
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}
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//---
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return(true);
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}
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//+------------------------------------------------------------------+
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//| "Voting" that price will grow. |
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//+------------------------------------------------------------------+
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int CSignalBearsPower::LongCondition(void)
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{
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int result=0;
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int idx =StartIndex();
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//--- if the oscillator is above zero, don't "vote" for buying
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if(Bears(idx)>0.0)
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return(result);
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//--- the oscillator is below zero
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if(StateBears(idx)>0)
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{
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//--- the oscillator has turned upwards at a previous bar
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//--- there is a condition for buying
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if(IS_PATTERN_USAGE(0))
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result=m_pattern_0;
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//--- if the model 1 is used, search for the "divergence" signal
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if(IS_PATTERN_USAGE(1))
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{
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ExtStateBears(idx);
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if((m_extr_map&0xF)==1)
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{
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if(m_extr_osc[0]<0.0 && m_extr_osc[2]<0.0)
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{
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//--- both valleys are below zero
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//--- we suppose that this is "divergence"
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result=m_pattern_1;
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}
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}
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}
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}
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//--- return the result
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return(result);
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}
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//+------------------------------------------------------------------+
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