Width - width of lines
SelectPeriod - Day or Week or Month and etc.
LookBack - Shift levels 0 - current period, 1 - previous and etc.
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.
USDT (TRC20): TH29EEXa19vfwZNYvxdUuMxoFY5QDYLcWG