Natenberg's VolatilityThis indicator is historical volatility indicator created by Sheldon Natenberg , as the standard deviation of the logarithmic price changes measured at regular intervals of time.
In Mr. Natenberg's book, Option Volatility & Pricing, he covers volatility in detail and gives the formula for computing historical volatility.
My changes :
I didn't changed formula, i just added smooth version of volatility it can be used as trigger when cross(over/under) non-smoothed volatility.
Note:
There is two formulas for daily and weekly. Indicator showing only daily formula !
Who wants to display the weekly formula change line 17, namely remove "//"
Enjoy!
