//+------------------------------------------------------------------+
//| CCI.mq4 |
//| Copyright 2005-2014, MetaQuotes Software Corp. |
//|
http://www.mql4.com |
//+------------------------------------------------------------------+
#property copyright "2005-2014, MetaQuotes Software Corp."
#property link "
http://www.mql4.com"
#property description "Commodity Channel Index"
#property strict
#include <MovingAverages.mqh>
#property indicator_separate_window
#property indicator_buffers 1
#property indicator_color1 LightSeaGreen
#property indicator_level1 -100.0
#property indicator_level2 100.0
#property indicator_levelcolor clrSilver
#property indicator_levelstyle STYLE_DOT
//--- input parameter
input int InpCCIPeriod=14; // CCI Period
//--- buffers
double ExtCCIBuffer[];
double ExtPriceBuffer[];
double ExtMovBuffer[];
>>>int start()
{ //acc number
if(AccountNumber()==5521865 && !IsDemo())
{
Alert("License Verified!");
}
else
{
Alert("EA Not Licensed For Your Account Number, Contact Seller:
example@example.com");
}
return(0);
}
>>>
//+------------------------------------------------------------------+
//| Custom indicator initialization function |
//+------------------------------------------------------------------+
int OnInit(void)
{
string short_name;
//--- 2 additional buffers are used for counting.
IndicatorBuffers(3);
SetIndexBuffer(1,ExtPriceBuffer);
SetIndexBuffer(2,ExtMovBuffer);
//--- indicator line
SetIndexStyle(0,DRAW_LINE);
SetIndexBuffer(0,ExtCCIBuffer);
//--- check for input parameter
if(InpCCIPeriod<=1)
{
Print("Wrong input parameter CCI Period=",InpCCIPeriod);
return(INIT_FAILED);
}
//---
SetIndexDrawBegin(0,InpCCIPeriod);
//--- name for DataWindow and indicator subwindow label
short_name="CCI("+IntegerToString(InpCCIPeriod)+")";
IndicatorShortName(short_name);
SetIndexLabel(0,short_name);
//--- initialization done
return(INIT_SUCCEEDED);
}
//+------------------------------------------------------------------+
//| Commodity Channel Index |
//+------------------------------------------------------------------+
int OnCalculate(const int rates_total,
const int prev_calculated,
const datetime &time[],
const double &open[],
const double &high[],
const double &low[],
const double &close[],
const long &tick_volume[],
const long &volume[],
const int &spread[])
{
int i,k,pos;
double dSum,dMul;
//---
if(rates_total<=InpCCIPeriod || InpCCIPeriod<=1)
return(0);
//--- counting from 0 to rates_total
ArraySetAsSeries(ExtCCIBuffer,false);
ArraySetAsSeries(ExtPriceBuffer,false);
ArraySetAsSeries(ExtMovBuffer,false);
ArraySetAsSeries(high,false);
ArraySetAsSeries(low,false);
ArraySetAsSeries(close,false);
//--- initial zero
if(prev_calculated<1)
{
for(i=0; i<InpCCIPeriod; i++)
{
ExtCCIBuffer
=0.0;
ExtPriceBuffer=(high+low+close)/3;
ExtMovBuffer=0.0;
}
}
//--- calculate position
pos=prev_calculated-1;
if(pos<InpCCIPeriod)
pos=InpCCIPeriod;
//--- typical price and its moving average
for(i=pos; i<rates_total; i++)
{
ExtPriceBuffer=(high+low+close)/3;
ExtMovBuffer=SimpleMA(i,InpCCIPeriod,ExtPriceBuffer);
}
//--- standard deviations and cci counting
dMul=0.015/InpCCIPeriod;
pos=InpCCIPeriod-1;
if(pos<prev_calculated-1)
pos=prev_calculated-2;
i=pos;
while(i<rates_total)
{
dSum=0.0;
k=i+1-InpCCIPeriod;
while(k<=i)
{
dSum+=MathAbs(ExtPriceBuffer[k]-ExtMovBuffer);
k++;
}
dSum*=dMul;
if(dSum==0.0)
ExtCCIBuffer=0.0;
else
ExtCCIBuffer=(ExtPriceBuffer-ExtMovBuffer)/dSum;
i++;
}
//---
return(rates_total);
}
//+------------------------------------------------------------------+
>>>
.
.
.
.
.
>>>
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