Range filter v1 — Indicator by RafaelZioni

The original design here

I change the calculation to try to make it more correct
alerts taken from Xavi alerts model of the original
can be use as filter or by its own

Release Notes:

change the offset from -1 to 0

Open-source script

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.

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