It works well if you need to identify if you need to stay "in" or "get-out" of a trade.
Also, a great thank you to all the great pine script programmers, who without them many of this would not be possible.
The code used is from Peter_O link
In true TradingView spirit, the author of this script has published it open-source, so traders can understand and verify it. Cheers to the author! You may use it for free, but reuse of this code in a publication is governed by House Rules. You can favorite it to use it on a chart.