EMA OF EMA

[Luciano Simonetti]

Hi, I'm a beginner for mq4 programming.

I would like help in programming a function that is the average of an average.

Knowing the EMA, how to program the EMA1 = f (EMA).

ES.

EMA = (period 12, exponential, price close)

EMA1 = (period 5, exponential, EMA).

Thanks to those who can help me.

Luciano

[William Roeder]

1. Perhaps you should read the manual.

   iMAOnArray
   Calculates the Moving Average indicator on data, stored in array, and returns its value.
             iMAOnArray - Technical Indicators - MQL4 Reference

2. Or just computed it.

   #define EMA(P,C,L) ((P) + ((C)-(P))*2./(L+1))
   ⋮
   static double value=0, ema1=0, ema2=0;
   double Vp = value;    value = …;
   double ema1p = ema1;  ema1  = EMA(Vp, value, Length);
   double ema2p = ema2;  ema2  = EMA(ema1p, ema2p, Length);
   

[Luciano Simonetti]

Thank you very much for the indication you gave me.