mrtools wrote: Mon Aug 23, 2021 8:22 am Guess this is Ehlers know it's the very close to non linear kalman which far as i'm aware is from Ehler. Anyway changed the coloring to non repaint if color mode = true.

mrtools wrote: Mon Aug 23, 2021 11:57 am 15 Min chart defaults settings except using 30 minute timeframe,order = 3, pre smooth = 3, and pct filter = 2.

The Order, Pre-Smooth & PCT Filter settings are spot on.

Also, have a look at the indicator on Bitcoin 4H chart using settings of:

• Filter Period: 21 (Fibonacci number)
• Order: 3
• Pre-Smooth: 3
• PCT Filter: 2

What's your thoughts? Good for trends or too laggy compared to Filter Period of 14? I think they're not bad to be honest!

Attached is a PDF which also outlines Ehlers's Spectral filters and frequency analysis. You will find more information on the Lowpass here.