//+------------------------------------------------------------------+
//| VROC.mq4 |
//| Copyright © 2007, MetaQuotes Software Corp. |
//| http://www.metaquotes.ru/ |
//+------------------------------------------------------------------+
#property copyright "Copyright © 2007, MetaQuotes Software Corp."
#property link "http://www.metaquotes.ru/"
//----
#property indicator_separate_window
#property indicator_buffers 1
#property indicator_color1 Green
//---- input parameters
extern int PeriodROC = 25;
//---- buffers
double ExtMapBuffer1[];
//+------------------------------------------------------------------+
//| Custom indicator initialization function |
//+------------------------------------------------------------------+
int init()
{
//---- indicators
SetIndexStyle(0, DRAW_LINE);
SetIndexBuffer(0, ExtMapBuffer1);
IndicatorShortName("VROC(" + PeriodROC + ")");
IndicatorDigits(2);
//----
return(0);
}
//+------------------------------------------------------------------+
//| Custom indicator deinitialization function |
//+------------------------------------------------------------------+
int deinit()
{
//----
return(0);
}
//+------------------------------------------------------------------+
//| Custom indicator iteration function |
//+------------------------------------------------------------------+
int start()
{
int counted_bars = IndicatorCounted();
int i, limit;
//----
if(counted_bars == 0)
limit = Bars - PeriodROC;
if(counted_bars > 0)
limit = Bars - counted_bars;
limit--;
for(i = limit; i >= 0; i--)
ExtMapBuffer1[i] = (Volume[i] - Volume[i + PeriodROC]) /
Volume[i+PeriodROC]*100;
//----
return(0);
}
//+------------------------------------------------------------------+
Sample
Analysis
Market Information Used:
Series array that contains tick volumes of each bar
Indicator Curves created:
Implements a curve of type DRAW_LINE
Indicators Used:
Custom Indicators Used:
Order Management characteristics:
Other Features: