KRI

//+------------------------------------------------------------------+
//|                                                          KRI.mq4 |
//|                                         Copyright © 2009, LeMan. |
//|                                                 b-market@mail.ru |
//+------------------------------------------------------------------+
#property copyright "Copyright © 2009, LeMan"
#property link      "b-market@mail.ru"
//----
#property indicator_separate_window
#property indicator_buffers 1
#property indicator_color1 Red
//---- Âõîäíûå ïàðàìåòðû
extern int KRIPeriod = 13;
//---- Áóôåðû
double KRIBuffer[];
//+------------------------------------------------------------------+
//| Ôóíêöèÿ èíèöèàëèçàöèè                                            |
//+------------------------------------------------------------------+
int init() {
   string short_name;
//---- Ëèíèè èíäèêàòîðà
   SetIndexStyle(0, DRAW_LINE);
   SetIndexBuffer(0, KRIBuffer);
//---- Íàäïèñè â îêíå
   short_name = "KRI ("+KRIPeriod+")";
   IndicatorShortName(short_name);
   SetIndexLabel(0, short_name);
//----
   SetIndexDrawBegin(0, KRIPeriod);
//----
   return(0);
}
//+------------------------------------------------------------------+
//| Ìåòîä Êàèðè                                                      |
//+------------------------------------------------------------------+
int start() {
   int i, counted_bars=IndicatorCounted();
//----
   if (Bars <= KRIPeriod) return(0);
//---- initial zero
   if (counted_bars < 1)
      for (i = 1; i <= KRIPeriod; i++) KRIBuffer[Bars-i] = 0.0;
//----
   i = Bars-KRIPeriod-1;
   if (counted_bars >= KRIPeriod) i = Bars-counted_bars-1;
   while(i >= 0) {
      double ma = iMA(NULL,0,KRIPeriod,0,MODE_SMA,PRICE_CLOSE,i);
      KRIBuffer[i] = ((Close[i]-ma)/ma)*100;
      i--;
   }
   return(0);
}
//+------------------------------------------------------------------+