//+------------------------------------------------------------------+
//| JMA_CCI.mq4 |
//| Copyright © 2004, MetaQuotes Software Corp. |
//| http://www.metaquotes.net/ |
//+------------------------------------------------------------------+
#property copyright "Copyright © 2004, scorpion."
#property link "http://www.fxfisherman.com/"
//----
#property indicator_separate_window
#property indicator_buffers 1
#property indicator_color1 LightSeaGreen
//---- input parameters
extern int CCIPeriod=14;
extern int JMAPhrase=0;
//---- 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);
//---- name for DataWindow and indicator subwindow label
short_name="JMA CCI("+CCIPeriod+")";
IndicatorShortName(short_name);
SetIndexLabel(0,short_name);
//----
SetIndexDrawBegin(0,CCIPeriod);
//----
return(0);
}
//+------------------------------------------------------------------+
//| Commodity Channel Index |
//+------------------------------------------------------------------+
int start()
{
int i,k,counted_bars=IndicatorCounted();
double price,sum,mul;
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]=iCustom(NULL,0,"JMA",CCIPeriod,0,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:
Custom Indicators Used:
JMA
Order Management characteristics:
Other Features: