I was going to upload it sooner.
This is Historical Volatility Estimators_ALL.
Eight Historical Volatility Estimators are available, Close to Close, Parkinson, Garman Klass, Garman Klass YZ Extension, Roger-Satchell, EWMA, Yang Zhang Estimator, Adjustable Mean Absolute Deviation, and Adjustable Median Absolute Deviation.

I converted it based on this page.
Balipour's TradingView Script
https://www.tradingview.com/script/nT8O ... ators-pig/
In addition, multi-symbols can be used.

Please read Balipour's page and post #264 for more information on Historical Volatility Estimators.
Volatility Indicators for MT4 #264
viewtopic.php?p=1295500963#p1295500963


If you want to use the indicators individually, please use the RAR file that contains all 8 indicators.