This script contains triple EMAs (20, 50 and 200) you can edit them according to your preferences by going to settings and select whatever EMA you are used to.
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 publications is governed by House rules. You can favorite it to use it on a chart.
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