|  JUN 1986

Letters to Technical Analysis

Letters to Technical Analysis Fourier Analysis Editor, I have an understanding of Fourier analysis from being an old-time EE. Not a lot of depth. I would like more information on the Volume 1 and Volume 2 disks. I have Volumes 1 and 2 of Technical Analysis of Stocks & Commodities; also an IBM PC. Do you have any further literature or a phone number I can use to call you? ED VILAS - Silver Spring, MD Dear Mr. Vilas Volumes 1 and 2 computer disks are currently only available in Apple II computer format. We intend to supply them as subroutines for IBM DOS at a later date. Fourier analysis has proven to be an excellent method for optimizing or tuning filters such as moving averages or momentum that are commonly used to smooth out daily stock or commodity data. In late 1980, I obtained some software that purported to implement a Fourier analysis designed for stock and commodity data. I found that it was sorely lacking in all respects a my understanding of Fourier spectral analysis. Therefore, in early 1982, Dr. Warren and I implemented a preprocessed and optimized Fast Fourier Transform specifically designed for use with stock or commodity data. These routines are published in Volumes 1 and 2 of Technical Analysis of Stocks & Commodities magazine and have been proven to be both accurate and reliable over time. - EDITOR

by Technical Analysis, Inc.