bollinger bands angle indicator

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hi , iv never seen this type of indicator ever before . i want to create a bollinger bands steepness indicator which calculates how steep the bollinger bands are or another way to put it would be saying how steep the angle of the bollinger bands are at any one time , and displays the results on a simple graph , the graph would be between -100 and 100 with a 0 in the middle , and 100 would be if the steepness of the bollinger bands was a vertical line for example .

can someone create this ? or how could i create it ?

what kind of calculations would have to be done ?

how is the steepness of the bollinger bands calculated ?

and what would cause the bollinger bands to become steep ?


thank you

 
  1. Can't be done. Can't be done.
    • There is no angle from 2 anchor points. An angle requires distance divided by distance; a unitless number. A chart has price/time. What is the angle of going 30 miles in 45 minutes? Meaningless!
    • You can get the slope from a trendline. Delta price / delta time. Changing the axes scales changes the apparent angle, the slope is constant. Angle is meaningless.
    • You can create a angled line using one point and setting the angle (Object Properties - Objects Constants - Standard Constants, Enumerations and Structures - MQL4 Reference.) The line is drawn that angle in pixels. Changing the axes scales does NOT change the angle (and thus is meaningless.)
  2. You can use slope but it won't be +/-100
  3. It becomes steep when the market move rapidly.
 
whroeder1:
  1. Can't be done. Can't be done.
    • There is no angle from 2 anchor points. An angle requires distance divided by distance; a unitless number. A chart has price/time. What is the angle of going 30 miles in 45 minutes? Meaningless!
    • You can get the slope from a trendline. Delta price / delta time. Changing the axes scales changes the apparent angle, the slope is constant. Angle is meaningless.
    • You can create a angled line using one point and setting the angle (Object Properties - Objects Constants - Standard Constants, Enumerations and Structures - MQL4 Reference.) The line is drawn that angle in pixels. Changing the axes scales does NOT change the angle (and thus is meaningless.)
  2. You can use slope but it won't be +/-100
  3. It becomes steep when the market move rapidly.
Could you do something like rsi on the slope? 
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