Custom EMA

[chua le]

Hi,

I try to create multiple EMAs which is parallel to H1 Ema 20 with 10 pips interval by editing the custom moving average as follow (highlighted ) and it doesnt create parallel lines but overlap on existing ema 20 line. The completed file is attached. Please help.

//+------------------------------------------------------------------+

//|  exponential moving average                                      |

//+------------------------------------------------------------------+

void CalculateEMA(int rates_total,int prev_calculated,const double &price[])

  {

   int    i,limit;

   double SmoothFactor=2.0/(1.0+InpMAPeriod);

//--- first calculation or number of bars was changed

   if(prev_calculated==0)

     {

      limit=InpMAPeriod;

      ExtLineBuffer[0]=price[0];

      for(i=1; i<limit; i++)

         ExtLineBuffer[i]=price[i]*SmoothFactor+ExtLineBuffer[i-1]*(1.0-SmoothFactor)+InpMAUpDown/100;

     }

   else

      limit=prev_calculated-1;

//--- main loop

   for(i=limit; i<rates_total && !IsStopped(); i++)

      ExtLineBuffer[i]=price[i]*SmoothFactor+ExtLineBuffer[i-1]*(1.0-SmoothFactor)+InpMAUpDown/100;

//---

  }

[William Roeder]

chua le: and it doesnt work.

1. When you post code please use the CODE button (Alt-S)! (For large amounts of code, attach it.) Please edit your post.
             General rules and best pratices of the Forum. - General - MQL5 programming forum
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2. "Doesn't work" is meaningless - just like saying the car doesn't work. Doesn't start, won't go in gear, no electrical, missing the key, flat tires - meaningless. There are no mind readers here and our crystal balls are cracked.

3. Did you set the two arrays to not as series, as that is how you're using them?
   

[Shino Unada]

Complete calculation of the EMA and next add the UpDown. Otherwise, it affects the calculation of the next EMA.

What is "/100"? Usually adjust the value with Point ().

[chua le]

Hi ,

Thanks. "/100" is Multiplier for different decimal points. I will replace it with a interger variable.  I am not sure where shall I add the UpDown, could you please helping?

//+------------------------------------------------------------------+

//|  exponential moving average                                      |

//+------------------------------------------------------------------+

void CalculateEMA(int rates_total,int prev_calculated,const double &price[])

  {

   int    i,limit;

   double SmoothFactor=2.0/(1.0+InpMAPeriod);

//--- first calculation or number of bars was changed

   if(prev_calculated==0)

     {

      limit=InpMAPeriod;

      ExtLineBuffer[0]=price[0];

      for(i=1; i<limit; i++)

         ExtLineBuffer[i]=price[i]*SmoothFactor+ExtLineBuffer[i-1]*(1.0-SmoothFactor)+InpMAUpDown/100;

     }

   else

      limit=prev_calculated-1;

//--- main loop

   for(i=limit; i<rates_total && !IsStopped(); i++)

      ExtLineBuffer[i]=price[i]*SmoothFactor+ExtLineBuffer[i-1]*(1.0-SmoothFactor)+InpMAUpDown/100;

//---

  }

[Shino Unada]

for(i=limit; i<rates_total && !IsStopped(); i++)
      ExtLineBuffer[i]=price[i]*SmoothFactor+ExtLineBuffer[i-1]*(1.0-SmoothFactor);

for(i=limit; i<rates_total && !IsStopped(); i++)
      ExtLineBuffer[i]+=InpMAUpDown*Point()*10;

  

[chua le]

Thank you ALL, it works now