You can easily find this paper in the Web. For example, visit: https://www.researchgate.net/publication...
This script is best suited for middle-to-higher time frames. Possible future developments: trend identification and factor calculation techniques.
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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.