How to reference Custom Indicator (SuperTrend)

Quoting zznbrm

Disliked

I agree with kennyhubbard in regard to using iCustom().

Here is a function to calculate the TrendMagic value in an EA (or script or whatever). I think Supertrend is very similar to TrendMagic. Hopefully, this will at least point you in the right direction. I did limited testing of this, but I think everything is in order.

BTW, this function can be used as a "shell" for all other indicators you want to turn into functions. Some indicators are easier to "functionize" than others. Anyway, hope this helps.

[code]
double getTrendMagic(...

Ignored

//+------------------------------------------------------------------+
//|                                                SuperTrend V1.mq4 |
//|                      Copyright © 2010, MetaQuotes Software Corp. |
//|                                        http://www.metaquotes.net |
//+------------------------------------------------------------------+
double ExtMapBuffer1[];
double ExtMapBuffer2[];

int      Periods = 3;
double   Multiplier = 1.25;
int      TimeFrame = 240;
string   TrendDirection = "No Direction YET!";


double   UpTrend,DownTrend;
//+------------------------------------------------------------------+
//| expert initialization function                                   |
//+------------------------------------------------------------------+
int init()
  {
//----
  
      
//----
   return(0);
  }
//+------------------------------------------------------------------+
//| expert deinitialization function                                 |
//+------------------------------------------------------------------+
int deinit()
  {
//----
   
//----
   return(0);
  }
//+------------------------------------------------------------------+
//| expert start function                                            |
//+------------------------------------------------------------------+
int start()
  {
//----
      RefreshRates();
      UpTrend = iCustom(NULL, 0, "SuperTrend",Periods,Multiplier,TimeFrame,0,1);
      DownTrend = iCustom(NULL, 0, "SuperTrend",Periods,Multiplier,TimeFrame,1,1);
      if(UpTrend > 5000)
      {
         UpTrend = 0;
         TrendDirection = "Down";
      }
      if(DownTrend > 5000)
      {
         DownTrend = 0;
         TrendDirection = "Up";
      }
      
            
      if(UpTrend > 0 && Close[0] >= UpTrend && Close[1] < UpTrend)
         Alert("Price is higher than SuperTrend");
      if(DownTrend > 0 && Close[0] <= DownTrend && Close[1] > DownTrend)
         Alert("Price is lower than SuperTrend");
         
         
         
         
         
         
         
         
         
         
         
   
      Comment("UpTrend: ", UpTrend, "n", "DownTrend: ", DownTrend, "n", "Trade Direction: ", TrendDirection);
//----
   return(0);
  }

SetIndexBuffer(0, TrendUp);

Quoting kennyhubbard

Disliked

Hi Gil,

Have a look at the code in your very first post. Look for this line near the beginning :-

Inserted Code

SetIndexBuffer(0, TrendUp);

There is a similar line for TrendDown. This is where the creator has linked the buffers to the array that it is going to calculate and or display.

The problem that you are facing, is that a buffer is a very special instrument and is not available outside of an indicator ie, you cannot use it in an EA. A buffer works like the magazine of a gun, every new bar is forced into the end and everything...

Ignored