Mel![]() Veteran ![]() ![]() ![]() Posts: 235 Joined: 3/18/2006 ![]() | You can call the Spectrum indicator from OL, and it will return the dominant cycle wavelength in the bandpass you specify. Automation is possible. 1.414 is the square root of 2. Nothing to do with Fib numbers. It is part of Ehlers calculation of a modified three pole Butterworth Filter (DSP stuff). Read "Cycle Analytics for Traders" by John Ehlers, his newest and most readable book. ACT really is all DSP stuff. Mel Mel |