/*-----------------------------+
| |
| Shared by www.Aptrafx.com |
| |
+------------------------------*/
//+------------------------------------------------------------------+
//| ROC.mq4 |
//| Copyright © 2006, Robert Hill |
//| |
//+------------------------------------------------------------------+
#property copyright "Copyright © 2006, Robert Hill"
//---- indicator settings
#property indicator_separate_window
#property indicator_buffers 1
#property indicator_color1 Red
//---- indicator parameters
extern int RPeriod=10;
extern bool UsePercent = false;
//---- indicator buffers
double RateOfChange[];
//+------------------------------------------------------------------+
//| Custom indicator initialization function |
//+------------------------------------------------------------------+
int init()
{
//---- drawing settings
SetIndexStyle(0,DRAW_LINE);
SetIndexDrawBegin(0,RPeriod);
IndicatorDigits(MarketInfo(Symbol(),MODE_DIGITS)+1);
//---- indicator buffers mapping
if(!SetIndexBuffer(0,RateOfChange))
Print("cannot set indicator buffers!");
//---- name for DataWindow and indicator subwindow label
IndicatorShortName("ROC("+RPeriod+")");
SetIndexLabel(0,"ROC");
//---- initialization done
return(0);
}
//+------------------------------------------------------------------+
//| Moving Averages Convergence/Divergence |
//+------------------------------------------------------------------+
int start()
{
int limit;
double ROC, CurrentClose, PrevClose;
int counted_bars=IndicatorCounted();
//---- check for possible errors
if(counted_bars<0) return(-1);
//---- last counted bar will be recounted
if(counted_bars>0) counted_bars--;
limit=Bars-counted_bars;
//---- ROC calculation
for(int i=0; i<limit; i++)
{
CurrentClose = iClose(NULL,0,i);
PrevClose = iClose(NULL,0,i+RPeriod);
ROC=CurrentClose-PrevClose;
if (UsePercent)
{
RateOfChange[i] = 100 * ROC / PrevClose;
}
else
{
RateOfChange[i] = ROC;
}
}
//---- done
return(0);
}
Sample
Analysis
Market Information Used:
Series array that contains close prices for each bar
Indicator Curves created:
Implements a curve of type DRAW_LINE
Indicators Used:
Custom Indicators Used:
Order Management characteristics:
Other Features: