OPEN-SOURCE SCRIPT
Percent Change Smoothed (PCT + EMA)

ROC works great on data with only positive numbers (like prices).
But it fails to correctly represent the rate of change when source series have negative values.
ROC is positive when:
Percent change (PCT) is just a ROC that deals with this sign confusion.
Anyone with Data Science backgroud would likely know about it.
PCT is positive only when:
When applying to only positive data PCT = ROC they are exactly equal.
I've also added EMA smoothing option.
Enjoy!
But it fails to correctly represent the rate of change when source series have negative values.
ROC is positive when:
- Source is positive AND Source is rising
- OR Source is negative AND Source is falling
Percent change (PCT) is just a ROC that deals with this sign confusion.
Anyone with Data Science backgroud would likely know about it.
PCT is positive only when:
- Source is rising
When applying to only positive data PCT = ROC they are exactly equal.
I've also added EMA smoothing option.
Enjoy!
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Aviso legal
The information and publications are not meant to be, and do not constitute, financial, investment, trading, or other types of advice or recommendations supplied or endorsed by TradingView. Read more in the Terms of Use.
Script de código aberto
Em verdadeiro espírito do TradingView, o criador deste script o tornou de código aberto, para que os traders possam revisar e verificar sua funcionalidade. Parabéns ao autor! Embora você possa usá-lo gratuitamente, lembre-se de que a republicação do código está sujeita às nossas Regras da Casa.
Aviso legal
The information and publications are not meant to be, and do not constitute, financial, investment, trading, or other types of advice or recommendations supplied or endorsed by TradingView. Read more in the Terms of Use.