iMAOnArrary would not plot

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Wilson Wong
316
Wilson Wong  
int begin=!prev_calculated?rates_total-BBandPeriod-1:rates_total-prev_calculated;
   double bandsUpper, bandsLower, bandsMain, bbwidth[];
   
   
   for (int i=begin;i>=0;i--)
   {  
      bandsUpper=iBands(NULL,PERIOD_CURRENT,BBandPeriod,2,0,PRICE_CLOSE,MODE_UPPER,i);
      bandsLower=iBands(NULL,PERIOD_CURRENT,BBandPeriod,2,0,PRICE_CLOSE,MODE_LOWER,i);
      bandsMain=iBands(NULL,PERIOD_CURRENT,BBandPeriod,2,0,PRICE_CLOSE,MODE_MAIN,i);
      bbwidth[i]=(bandsUpper-bandsLower)/bandsMain*100;
      BBWidthAverageBuffer[i]=iMAOnArray(bbwidth,0,20,0,MODE_SMA,i);
}

BBWidthAverageBuffer[i] would not plot, help appreciated.

Keith Watford
Moderator
14022
Keith Watford  
Wilson Wong:

BBWidthAverageBuffer[i] would not plot, help appreciated.

Do a separate loop for iMAOnArray after populating the other buffer.

Wilson Wong
316
Wilson Wong  
Keith Watford:

Do a separate loop for iMAOnArray after populating the other buffer.

int begin=!prev_calculated?rates_total-BBandPeriod-1:rates_total-prev_calculated;
   double bandsUpper, bandsLower, bandsMain, bbwidth[];
   
   
   for (int i=begin;i>=0;i--)
   {  
      bandsUpper=iBands(NULL,PERIOD_CURRENT,BBandPeriod,2,0,PRICE_CLOSE,MODE_UPPER,i);
      bandsLower=iBands(NULL,PERIOD_CURRENT,BBandPeriod,2,0,PRICE_CLOSE,MODE_LOWER,i);
      bandsMain=iBands(NULL,PERIOD_CURRENT,BBandPeriod,2,0,PRICE_CLOSE,MODE_MAIN,i);
      bbwidth[i]=(bandsUpper-bandsLower)/bandsMain*100;
   //   BBWidthAverageBuffer[i]=iMAOnArray(bbwidth,0,20,0,MODE_SMA,i);
   }

   for (int i=begin;i>=0;i--)
   {  

      BBWidthAverageBuffer[i]=iMAOnArray(bbwidth,0,20,0,MODE_SMA,i);
   }

I did this as a separate loop, but nothing showed up either. Am I wrong in the coding?

Keith Watford
Moderator
14022
Keith Watford  
Wilson Wong:

I did this as a separate loop, but nothing showed up either. Am I wrong in the coding?

I just noticed

 double bandsUpper, bandsLower, bandsMain, bbwidth[];

why are you not declaring bbwidth[] as a buffer? If you are going to use it as a normal array, then you will need to size it which is a waste of time when you can just make it a buffer.

Wilson Wong
316
Wilson Wong  
Keith Watford:

I just noticed

why are you not declaring bbwidth[] as a buffer? If you are going to use it as a normal array, then you will need to size it which is a waste of time when you can just make it a buffer.

A great thanks to you, Keith. My apologies I am still a newbie in the learning of MQL and neither am I good in C++.


This time around I managed to show something in my plot. So a buffer does make things easier. I will read up more on this. Your kind pointers are most appreciated.

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