LazyBear

Indicators: Butterworth & Super Smoother filters

These indicators, from John Ehlers' book "Cybernetic Analysis for Stocks and Futures", are EMA alternatives.

The basic idea behind all these is to try to get smoothing with as little lag as possible. As you can see from the chart, they are much smoother, have better response, and a closer match to market prices.

Basically, all the responsiveness of a faster EMA, with the smoothing of a slower EMA :)

List of my free indicators: bit.ly/1LQaPK8
List of my indicators at Appstore: blog.tradingview.com/?p=970
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.

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.

Want to use this script on a chart?
//
// @author LazyBear
// 
// If you use this code in its original/modified form, do drop me a note. 
//
study("Two Pole Super Smoother Filter [LazyBear]", shorttitle="2PSSF_LB", overlay=true)
p=hl2
length=input(13)

a1=exp(-1.414*3.14159/length)
b1=2*a1*cos(1.414*180/length)
coef2=b1
coef3=-a1*a1
coef1=1-coef2-coef3
f2 = coef1*p+coef2*nz(f2[1])+coef3*nz(f2[2])
plot(f2,"2-Pole Super Smoother", color=black, linewidth=2)