why indicators work with some brokers and not others?

Quoting panthere

Disliked

Good morning.
question for the experts.
why certain indicators work in some brokers and not in others?
there are parameters to settle on metatrader?
I have indicators that works very well at FXCM metatrader metatrader but not in MDA why?
thank you

Ignored

//+------------------------------------------------------------------+
//|                                                 Index.mq4 |
//|                                  Copyright © 2010 dru dominique  |
//|                                                                  |
//+------------------------------------------------------------------+
#property copyright "dominique"
#property link      ""

#property indicator_separate_window
#property indicator_buffers 3
#property indicator_color1 Red
#property indicator_width1 2
#property indicator_color2 Yellow
#property indicator_width2 1
#property indicator_style2 1
#property indicator_color3 Green
#property indicator_width3 1
#property indicator_style3 2
//---- buffers
double ExtMapBuffer1[];
double ExtMapBuffer2[];
double ExtMapBuffer3[];

extern int short_term_SMA_period =1;
extern int long_term_SMA_period =60;

//int winind;
//+------------------------------------------------------------------+
//| Custom indicator initialization function                         |
//+------------------------------------------------------------------+
int init()
  {
//---- indicators
   SetIndexStyle(0,DRAW_HISTOGRAM);
   SetIndexBuffer(0,ExtMapBuffer1);
   SetIndexLabel(0,"DXY");
   SetIndexStyle(1,DRAW_HISTOGRAM);
   SetIndexBuffer(1,ExtMapBuffer2);
   SetIndexLabel(1,short_term_SMA_period+"SMA");
   SetIndexStyle(2,DRAW_HISTOGRAM);
   SetIndexBuffer(2,ExtMapBuffer3);
   SetIndexLabel(2,long_term_SMA_period+"SMA");   
   IndicatorShortName(" Index: di / "+short_term_SMA_period+"SMA / "+long_term_SMA_period+"SMA");
// winind = WindowFind("Index: di/ "+short_term_SMA_period+"SMA / "+long_term_SMA_period+"SMA"); 
   
//----
   return(0);
  }
//+------------------------------------------------------------------+
//| Custom indicator deinitialization function                       |
//+------------------------------------------------------------------+
int deinit()
  {
//----
//----
   return(0);
  }
//+------------------------------------------------------------------+
//| Custom indicator iteration function                              |
//+------------------------------------------------------------------+
int start()
  {
     int limit;
     int counted_bars=IndicatorCounted();
  //---- check for possible errors
     if(counted_bars<0) return(-1);
  //---- the last counted bar will be recounted
     if(counted_bars>0) counted_bars--;
     limit=Bars-counted_bars;
  //---- main loop
     for(int i=0; i<limit; i++)
       {
        ExtMapBuffer1[i]=70.25 * MathPow(iClose("EURUSD",0,i),-0.214) * MathPow(iClose("USDJPY",0,i),0.120) * MathPow(iClose("GBPUSD",0,i),-0.107) * MathPow(iClose("USDCAD",0,i),0.071) * MathPow(iClose("USDSEK",0,i),0.021) * MathPow(iClose("USDCHF",0,i),0.036);
       }
     for(i=0; i<limit; i++)
       {
        ExtMapBuffer2[i]=0;
        ExtMapBuffer3[i]=0;
        for(int z=0; z<long_term_SMA_period; z++)
          {       
           if(z<short_term_SMA_period) ExtMapBuffer2[i]=ExtMapBuffer2[i]+ExtMapBuffer1[i+z];
           ExtMapBuffer3[i]=ExtMapBuffer3[i]+ExtMapBuffer1[i+z];  
          }
        ExtMapBuffer2[i] = ExtMapBuffer2[i]/short_term_SMA_period;
        ExtMapBuffer3[i] = ExtMapBuffer3[i]/long_term_SMA_period;
       } 
  //---- done
     return(0);
  }
//+------------------------------------------------------------------+

Quoting panthere

Disliked

ok thank you.
indicator is not me :-)
question how to usdsek?
cordially

Ignored

Quoting Rob Mondave

Disliked

There's no trick to get a pair if your broker doesn't offer it. If your broker doesn't offer USD/SEK, there's nothing you can do.

Ignored