MT4智能交易编程示例AC指标

MT4智能交易

MT4智能交易编程示例AC指标

1. 
   
2. #property copyright   "路路发智能交易研发中心"
   
3. #property link        "http://www.ea668.com"
   
4. #property description "Accelerator/Decelerator"
   
5. #property strict
   
6. 
   
7. #include <MovingAverages.mqh>
   
8. 
   
9. //--- indicator settings
   
10. #property  indicator_separate_window
    
11. #property  indicator_buffers 3
    
12. #property  indicator_color1  Black
    
13. #property  indicator_color2  Green
    
14. #property  indicator_color3  Red
    
15. //--- indicator buffers
    
16. double     ExtACBuffer[];
    
17. double     ExtUpBuffer[];
    
18. double     ExtDnBuffer[];
    
19. double     ExtMacdBuffer[];
    
20. double     ExtSignalBuffer[];
    
21. //---
    
22. #define PERIOD_FAST  5
    
23. #define PERIOD_SLOW 34
    
24. //--- bars minimum for calculation
    
25. #define DATA_LIMIT  38
    
26. //+------------------------------------------------------------------+
    
27. //| Custom indicator initialization function                         |
    
28. //+------------------------------------------------------------------+
    
29. void OnInit(void)
    
30.   {
    
31.    IndicatorShortName("AC");
    
32. //--- 2 additional buffers are used for counting.
    
33.    IndicatorBuffers(5);
    
34. //--- drawing settings
    
35.    SetIndexStyle(0,DRAW_NONE);
    
36.    SetIndexStyle(1,DRAW_HISTOGRAM);
    
37.    SetIndexStyle(2,DRAW_HISTOGRAM);
    
38.    IndicatorDigits(Digits+2);
    
39.    SetIndexDrawBegin(0,DATA_LIMIT);
    
40.    SetIndexDrawBegin(1,DATA_LIMIT);
    
41.    SetIndexDrawBegin(2,DATA_LIMIT);
    
42. //--- all indicator buffers mapping
    
43.    SetIndexBuffer(0,ExtACBuffer);
    
44.    SetIndexBuffer(1,ExtUpBuffer);
    
45.    SetIndexBuffer(2,ExtDnBuffer);
    
46.    SetIndexBuffer(3,ExtMacdBuffer);
    
47.    SetIndexBuffer(4,ExtSignalBuffer);
    
48. //--- name for DataWindow and indicator subwindow label
    
49.    SetIndexLabel(1,NULL);
    
50.    SetIndexLabel(2,NULL);
    
51.   }
    
52. //+------------------------------------------------------------------+
    
53. //| Accelerator/Decelerator Oscillator                               |
    
54. //+------------------------------------------------------------------+
    
55. int OnCalculate (const int rates_total,
    
56.                  const int prev_calculated,
    
57.                  const datetime& time[],
    
58.                  const double& open[],
    
59.                  const double& high[],
    
60.                  const double& low[],
    
61.                  const double& close[],
    
62.                  const long& tick_volume[],
    
63.                  const long& volume[],
    
64.                  const int& spread[])
    
65.   {
    
66.    int    i,limit;
    
67.    double prev=0.0,current;
    
68. //--- check for rates total
    
69.    if(rates_total<=DATA_LIMIT)
    
70.       return(0);
    
71. //--- last counted bar will be recounted
    
72.    limit=rates_total-prev_calculated;
    
73.    if(prev_calculated>0)
    
74.      {
    
75.       limit++;
    
76.       prev=ExtMacdBuffer[limit]-ExtSignalBuffer[limit];
    
77.      }
    
78. //--- macd counted in the 1-st additional buffer
    
79.    for(i=0; i<limit; i++)
    
80.       ExtMacdBuffer[i]=iMA(NULL,0,PERIOD_FAST,0,MODE_SMA,PRICE_MEDIAN,i)-
    
81.                        iMA(NULL,0,PERIOD_SLOW,0,MODE_SMA,PRICE_MEDIAN,i);
    
82. //--- signal line counted in the 2-nd additional buffer
    
83.    SimpleMAOnBuffer(rates_total,prev_calculated,0,5,ExtMacdBuffer,ExtSignalBuffer);
    
84. //--- dispatch values between 2 buffers
    
85.    bool up=true;
    
86.    for(i=limit-1; i>=0;)
    
87.      {
    
88.       current=ExtMacdBuffer[i]-ExtSignalBuffer[i];
    
89.       if(current>prev)
    
90.          up=true;
    
91.       if(current<prev)
    
92.          up=false;
    
93.       if(!up)
    
94.         {
    
95.          ExtUpBuffer[i]=0.0;
    
96.          ExtDnBuffer[i]=current;
    
97.         }
    
98.       else
    
99.         {
    
100.          ExtUpBuffer[i]=current;
     
101.          ExtDnBuffer[i]=0.0;
     
102.         }
     
103.       ExtACBuffer[i]=current;
     
104.       i--;
     
105.       prev=ExtMacdBuffer[i+1]-ExtSignalBuffer[i+1];
     
106.      }
     
107. //--- done
     
108.    return(rates_total);
     
109.   }
     
110. //+------------------------------------------------------------------+
     

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