This version of QFL is based on a script from ralphhorkup:

Author:
www.tradingview.com/u/ralphhorkup/

I made a few adjustments:
1) no issues with repainting caused by calling security function.
2) migrated to pine script 4

Everything else is the same.

I'll be adding alerts soon.

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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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