CCI





//+------------------------------------------------------------------+
//|                                                          CCI.mq4 |
//|                      Copyright © 2004, MetaQuotes Software Corp. |
//|                                       http://www.metaquotes.net/ |
//+------------------------------------------------------------------+
#property copyright "Copyright © 2004, MetaQuotes Software Corp."
#property link      "http://www.metaquotes.net/"
//----
#property indicator_separate_window
#property indicator_buffers 1
#property indicator_color1 LightSeaGreen
//---- input parameters
extern int CCIPeriod = 14;
//---- buffers
double CCIBuffer[];
double RelBuffer[];
double DevBuffer[];
double MovBuffer[];
//+------------------------------------------------------------------+
//| Custom indicator initialization function                         |
//+------------------------------------------------------------------+
int init()
  {
   string short_name;
//---- 3 additional buffers are used for counting.
   IndicatorBuffers(4);
   SetIndexBuffer(1, RelBuffer);
   SetIndexBuffer(2, DevBuffer);
   SetIndexBuffer(3, MovBuffer);
//---- indicator lines
   SetIndexStyle(0, DRAW_LINE);
   SetIndexBuffer(0, CCIBuffer);
//----
   if(CCIPeriod <= 0)
       CCIPeriod = 14;
//----
   SetIndexDrawBegin(0, CCIPeriod);
  
//---- name for DataWindow and indicator subwindow label
   short_name="CCI(" + CCIPeriod + ")";
   IndicatorShortName(short_name);
   SetIndexLabel(0, short_name);
//----
   return(0);
  }
//+------------------------------------------------------------------+
//| Commodity Channel Index                                          |
//+------------------------------------------------------------------+
int start()
  {
   int    i, k, counted_bars = IndicatorCounted();
   double price, sum, mul; 
   if(CCIPeriod <= 1)
       return(0);
   if(Bars <= CCIPeriod) 
       return(0);
//---- initial zero
   if(counted_bars < 1)
     {
       for(i = 1; i <= CCIPeriod; i++) 
           CCIBuffer[Bars-i] = 0.0;
       for(i = 1; i <= CCIPeriod; i++) 
           DevBuffer[Bars-i] = 0.0;
       for(i = 1; i <= CCIPeriod; i++) 
           MovBuffer[Bars-i] =0.0;
     }
//---- last counted bar will be recounted
   int limit = Bars - counted_bars;
   if(counted_bars > 0) 
       limit++;
//---- moving average
   for(i = 0; i < limit; i++)
       MovBuffer[i] = iMA(NULL, 0, CCIPeriod, 0, MODE_SMA, PRICE_TYPICAL, i);
//---- standard deviations
   i = Bars - CCIPeriod + 1;
   if(counted_bars > CCIPeriod - 1) 
       i = Bars - counted_bars - 1;
   mul = 0.015 / CCIPeriod;
   while(i >= 0)
     {
       sum = 0.0;
       k = i + CCIPeriod - 1;
       while(k >= i)
        {
          price =(High[k] + Low[k] + Close[k]) / 3;
          sum += MathAbs(price - MovBuffer[i]);
          k--;
        }
       DevBuffer[i] = sum*mul;
       i--;
     }
   i = Bars - CCIPeriod + 1;
   if(counted_bars > CCIPeriod - 1) 
       i = Bars - counted_bars - 1;
   while(i >= 0)
     {
       price = (High[i] + Low[i] + Close[i]) / 3;
       RelBuffer[i] = price - MovBuffer[i];
       i--;
     }
//---- cci counting
   i = Bars - CCIPeriod + 1;
   if(counted_bars > CCIPeriod - 1) 
       i = Bars - counted_bars - 1;
   while(i >= 0)
     {
       if(DevBuffer[i] == 0.0) 
           CCIBuffer[i] = 0.0;
       else 
           CCIBuffer[i] = RelBuffer[i] / DevBuffer[i];
       i--;
     }
//----
   return(0);
  }
//+------------------------------------------------------------------+



Sample





Analysis



Market Information Used:

Series array that contains close prices for each bar
Series array that contains the highest prices of each bar
Series array that contains the lowest prices of each bar


Indicator Curves created:


Implements a curve of type DRAW_LINE

Indicators Used:

Moving average indicator


Custom Indicators Used:

Order Management characteristics:

Other Features: