OPEN-SOURCE SCRIPT
Happy KC

Re-interpreted from @eSaniello for visual purposes and re-worked the math on the Keltner formula.
Keltner Channel Calculation
Keltner Channel Middle Line=EMA
Keltner Channel Upper Band=EMA+multiplier∗ATR
Keltner Channel Lower Band=EMA−multiplier∗ATR
where:
EMA=Exponential moving average (typically over 20 periods)
ATR=Average True Range (typically over 10 or 20 periods)
I wanted dual Keltner channels in a single indicator. If you add the default Tradingview Keltner channels twice with multipliers of 1 and 2, it should overlay exactly.
Keltner Channel Calculation
Keltner Channel Middle Line=EMA
Keltner Channel Upper Band=EMA+multiplier∗ATR
Keltner Channel Lower Band=EMA−multiplier∗ATR
where:
EMA=Exponential moving average (typically over 20 periods)
ATR=Average True Range (typically over 10 or 20 periods)
I wanted dual Keltner channels in a single indicator. If you add the default Tradingview Keltner channels twice with multipliers of 1 and 2, it should overlay exactly.
Open-source script
In true TradingView spirit, the creator of this script has made it open-source, so that traders can review and verify its functionality. Kudos to the author! While you can use it for free, remember that republishing the code is subject to our House Rules.
Disclaimer
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.
Open-source script
In true TradingView spirit, the creator of this script has made it open-source, so that traders can review and verify its functionality. Kudos to the author! While you can use it for free, remember that republishing the code is subject to our House Rules.
Disclaimer
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.