//+------------------------------------------------------------------+
//| RSI.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_minimum 20
#property indicator_maximum 80
#property indicator_buffers 1
#property indicator_color1 DodgerBlue
//---- input parameters
extern int RVIPeriod=10;
//---- buffers
double RSIBuffer[];
double PosBuffer[];
double NegBuffer[];
//+------------------------------------------------------------------+
//| Custom indicator initialization function |
//+------------------------------------------------------------------+
int init()
{
string short_name;
//---- 2 additional buffers are used for counting.
IndicatorBuffers(3);
SetIndexBuffer(1,PosBuffer);
SetIndexBuffer(2,NegBuffer);
//---- indicator line
SetIndexStyle(0,DRAW_LINE);
SetIndexBuffer(0,RSIBuffer);
//---- name for DataWindow and indicator subwindow label
short_name="R_Volatility_I("+RVIPeriod+")";
IndicatorShortName(short_name);
SetIndexLabel(0,short_name);
//----
SetIndexDrawBegin(0,RVIPeriod);
//----
return(0);
}
//+------------------------------------------------------------------+
//| Relative Strength Index |
//+------------------------------------------------------------------+
int start()
{
int i,counted_bars=IndicatorCounted();
double rel,negative,positive;
//----
if(Bars<=RVIPeriod) return(0);
//---- initial zero
if(counted_bars<1)
for(i=1;i<=RVIPeriod;i++) RSIBuffer[Bars-i]=0.0;
//----
i=Bars-RVIPeriod-1;
if(counted_bars>=RVIPeriod) i=Bars-counted_bars-1;
while(i>=0)
{
positive=iStdDev(NULL,0,RVIPeriod,0,MODE_EMA,PRICE_HIGH,i);
negative=iStdDev(NULL,0,RVIPeriod,0,MODE_EMA,PRICE_LOW,i);
RSIBuffer[i]=100.0-100.0/(1+positive/negative);
i--;
}
//----
return(0);
}
//+------------------------------------------------------------------+
Sample
Analysis
Market Information Used:
Indicator Curves created:
Implements a curve of type DRAW_LINE
Indicators Used:
Standard Deviation indicator
Custom Indicators Used:
Order Management characteristics:
Other Features: