Indicator to calculate spread between pairs

[DeanDeV]

Hey Guys,

I seem to be pulling my hair out on this one. All I would like to do is have an indicator in a new window measuring the spread between two pairs by drawing a line with it's price?

 

Could anyone help with this?

 

Any suggestions are welcome.

 

Thanks

Dean 

[Thaddeus_39]

The standard answer in this forum to posts like yours, where you describe what you want without any display of effort (and I am not saying you haven't tried - it's just that we need an indication of your attempt), is to either pay someone to do it or learn to do it yourself.

If, after an indication of a legitimate attempt, you are still struggling, share your code and the community will help you.

Cheers 

[rod178]

DeanDeV:

Hey Guys,

I seem to be pulling my hair out on this one. All I would like to do is have an indicator in a new window measuring the spread between two pairs by drawing a line with it's price?

 

Could anyone help with this?

 

Any suggestions are welcome.

 

Thanks

Dean 

Doubt that you have tried as the solution(s) are rather simple

Start with

 

  double bid  =MarketInfo(Symbol(),MODE_BID);   // Request for the value of Bid
  double ask  =MarketInfo(Symbol(),MODE_ASK);

[William Roeder]

Thaddeus_39: The standard answer in this forum to posts like yours,	You have only three choices: Search for it, learn to code it, or pay someone. We're not going to code it FOR you. We are willing to HELP you when you post your attempt (using SRC) and the nature of your problem.

[DeanDeV]

Thaddeus_39:

The standard answer in this forum to posts like yours, where you describe what you want without any display of effort (and I am not saying you haven't tried - it's just that we need an indication of your attempt), is to either pay someone to do it or learn to do it yourself.

If, after an indication of a legitimate attempt, you are still struggling, share your code and the community will help you.

Cheers 

Thanks for the reply, below is my attempt, however, I want to use Ask and Bid prices? Is it possible? :/

#property indicator_separate_window
#property indicator_buffers 1
#property indicator_color1 Black
#property indicator_minimum 0
//---- buffers
double Spread[];
double XPrice[];
double YPrice[];

//+------------------------------------------------------------------+
//| Custom indicator initialization function                         |
//+------------------------------------------------------------------+
int init()
  {
   IndicatorShortName("spread");
   IndicatorDigits(Digits - 3);
   IndicatorBuffers(3);
   SetIndexBuffer(0, Spread);
   SetIndexBuffer(1, XPrice);
   SetIndexBuffer(2, YPrice);
   SetIndexStyle(0, DRAW_LINE);
   SetIndexLabel(0, "spread");
   return(0);
  }

//+------------------------------------------------------------------+
//| Custom indicator deinitialization function                       |
//+------------------------------------------------------------------+
int deinit()
  {
   return(0);
  }

//+------------------------------------------------------------------+
//| Custom indicator iteration function                              |
//+------------------------------------------------------------------+
int start()
  {
   int i, counted_bars = IndicatorCounted();
//---- check for possible errors
   if(counted_bars < 0) 
       return(-1);
//---- last counted bar will be recounted
   if(counted_bars > 0) 
       counted_bars--; 
   int limit = Bars - counted_bars;
   
        for(i = 0; i < limit; i++)
          {
           XPrice[i] = NormalizeDouble(iClose("X",0,i),2);
           YPrice[i] = NormalizeDouble(iClose("Y",0,i),2);
          }

        for(i = limit - 1; i >= 0; i--)
         {
          Spread[i] = XPrice[i] - YPrice[i];
         }
//----
   return(0);
  }

 Thanks in advance...,

[Alexander Mordashov]

#property indicator_separate_window
#property indicator_buffers 1
#property indicator_color1  DodgerBlue

extern string SecondSymbol = "WTI";
double ExtSpreadBuffer[];
//+------------------------------------------------------------------+

int OnInit(void)
  {
   IndicatorBuffers(1);
   IndicatorDigits(Digits);

   SetIndexStyle(0,DRAW_LINE);
   SetIndexBuffer(0,ExtSpreadBuffer);


   return(INIT_SUCCEEDED);
  }

int OnCalculate(const int rates_total,
                const int prev_calculated,
                const datetime &time[],
                const double &open[],
                const double &high[],
                const double &low[],
                const double &close[],
                const long &tick_volume[],
                const long &volume[],
                const int &spread[])
  {
   int i,limit;

   for(i=limit; i<rates_total; i++)
     {
      datetime timeNow = iTime(Symbol(), 0, i);
      ExtSpreadBuffer[i] = iClose(Symbol(), 0, i) - iClose(SecondSymbol, 0, iBarShift(SecondSymbol, 0, timeNow));
     }
   return(rates_total);
  }

A very raw version just to show the idea.