This script extracts the highest price "ta.highest" and lowest price "ta.lowest" over a period of time, obtains the average value "array.avg" and plots it on a chart. At the same time, it also plots high and low prices, so you can use the volatility over a period of time and its center point as a reference for trading. The pine code is as simple as possible, so there is no difficulty. You can also change the period. We sincerely hope that this script will help you in your trading.