#property copyright "Copyright © 2004, MetaQuotes Software Corp."
#property link      "http://www.metaquotes.net/"

#property indicator_separate_window
#property indicator_buffers 1
#property indicator_color1 Red

extern int RPeriod = 10;
extern bool UsePercent = FALSE;
double g_ibuf_84[];

int init() {
   SetIndexStyle(0, DRAW_LINE);
   SetIndexDrawBegin(0, RPeriod);
   IndicatorDigits(MarketInfo(Symbol(), MODE_DIGITS) + 1.0);
   if (!SetIndexBuffer(0, g_ibuf_84)) Print("cannot set indicator buffers!");
   IndicatorShortName("ROC(" + RPeriod + ")");
   SetIndexLabel(0, "ROC");
   return (0);
}

int start() {
   double ld_4;
   double l_iclose_12;
   double l_iclose_20;
   int li_28 = IndicatorCounted();
   if (li_28 < 0) return (-1);
   if (li_28 > 0) li_28--;
   int li_0 = Bars - li_28;
   for (int li_32 = 0; li_32 < li_0; li_32++) {
      l_iclose_12 = iClose(NULL, 0, li_32);
      l_iclose_20 = iClose(NULL, 0, li_32 + RPeriod);
      ld_4 = l_iclose_12 - l_iclose_20;
      if (UsePercent) g_ibuf_84[li_32] = 100.0 * ld_4 / l_iclose_20;
      else g_ibuf_84[li_32] = ld_4;
   }
   return (0);
}