//+------------------------------------------------------------------+
//|                                                          PDF.mq4 |
//|                         Copyright © 2006, Luis Guilherme Damiani |
//|                                      http://www.damianifx.com.br |
//+------------------------------------------------------------------+
#property copyright "Copyright © 2006, Luis Guilherme Damiani"
#property link      "http://www.damianifx.com.br"
//----
#property indicator_separate_window
#property indicator_buffers 1
#property indicator_color1 clrMediumSeaGreen
//----
double pdf[];
//---- input parameters
extern int       ch_size=20;
//extern int limit_value=0;
//+------------------------------------------------------------------+
//| Custom indicator initialization function                         |
//+------------------------------------------------------------------+
int init()
  {
   SetIndexStyle(0,DRAW_LINE);
   SetIndexBuffer(0,pdf);
//----
   return(0);
  }
//+------------------------------------------------------------------+
//| Custom indicator deinitialization function                       |
//+------------------------------------------------------------------+
int deinit()
  {
//----
//----
   return(0);
  }
//+------------------------------------------------------------------+
//| Custom indicator iteration function                              |
//+------------------------------------------------------------------+
int start()
  {
//----
//---- indicators
   int counter[100];
   int limit=Bars-1-ch_size;
   int value=0;
   int i;
   int    counted_bars=IndicatorCounted();
   if(counted_bars<0) return(-1);
   ArrayInitialize(counter,0);
   for(i=limit;i>=0;i--)
     {
      value=(int)MathCeil(iStochastic(NULL,0,ch_size,2,1,MODE_SMA,0,MODE_MAIN,i));
      if(value!=0) counter[100-value]=counter[100-value]+1;
      //if(counter[100-value]>limit_value && limit_value!=0)counter[100-value]=limit_value;
     }
   pdf[0]=0;
   int limit2=100;
   if(limit2>Bars) limit2=Bars;
   for(i=limit2-1;i>0;i--)
     {
      pdf[i]=counter[i];
      // Print(pdf[i]);
     }
//----
   return(0);
  }
//+------------------------------------------------------------------+