BollingerBand Value

Quoting sspremj

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Hi, In 30 Minutes Time Frame, how to get Bollingerband value for the highest candle of the day and lowest candle of the day. Thanks in advance, Prem

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   int _firstBarOfTheDay = iBarShift(NULL,0,iTime(NULL,PERIOD_D1,0));
   int _highestHigh      = ArrayMaximum(high,_firstBarOfTheDay+1,0);
   int _lowestLow        = ArrayMinimum(low ,_firstBarOfTheDay+1,0);
      
      double _bbAtHighest=iBands(NULL,0,20,2,0,PRICE_CLOSE,MODE_UPPER,_highestHigh);
      double _bbAtLowest =iBands(NULL,0,20,2,0,PRICE_CLOSE,MODE_LOWER,_lowestLow  );