How to check whether last candle is completely out of bollinger band

[don per]

Hi Friends,

I am trying to write a piece of code to check whether the previous candle body is completely outside of Bollinger bands. So far I wrote the following.

  double bolinger_upper_band=iBands(NULL,0,mPeriod,mDeviation,mShift,mAppliedto,MODE_UPPER,1);
  double bolinger_lower_band=iBands(NULL,0,mPeriod,mDeviation,mShift,mAppliedto,MODE_LOWER,1);

   if (Close[1] > Open[1] && Open[1] > bolinger_upper_band)
   {Comment("Outside");}  
   else if (Close[1] < Open[1] && Close[1] > bolinger_upper_band)
   {Comment("Outside");}  
  
   else if (Open[1] > Close[1] && Open[1] < bolinger_lower_band)
   {Comment("Outside");}  
   else if (Open[1] < Close[1] && Close[1] < bolinger_lower_band)
   {Comment("Outside");} 

My problem is this is not giving me the exact result that I am looking for.

Ex 1: Following Image shows a candle body that is completely outside of BB. Which is what I am looking for.

Ex 2: Following shows a candle body which is not completely outside as BB is touching it. I am not sure how to check this as I am new to the programming. Just learning the ropes.

I would really appreciate if anyone could help me with this.

[Anthony Garot]

To get a full bar outside, you need to use Low[1] for the upper band and High[1] for the lower band.

You are using Open[1] and Close[1], which only define the body of the bar.

[don per]

Thanks. I only want to have only the body outside BB, not the whole candle.

[Anthony Garot]

don per:
Thanks. I only want to have only the body outside BB, not the whole candle.

Oh. Disregard my previous message.

Use MathMin(Close[i],Open[i]) for the upper band, and MathMax(Close[i],Open[i]) for the lower band.

Also note: the body of Ex. 2 (above) is outside the BB. A bar doesn't actually have width, so only the actual price counts, not if it appears to visually touch.

[don per]

Thanks for the sample and explanation. Much appreciated.

Is there any way that I could code it so that it will only look for candles similar to in Ex. 1? I agree ex.2 is out of the BB, but I want to code it to look for candles in Ex.1

[Anthony Garot]

Is there any way that I could code it so that it will only look for candles similar to in Ex. 1?

That was my previous answer:

Anthony Garot:

To get a full bar outside, you need to use Low[1] for the upper band and High[1] for the lower band.

So, something like:

   if (Low[1] > bollinger_upper_band[1])
   {Comment("Above");}  
   else if (High[1] < bollinger_lower_band[1])
   {Comment("Below");}