Morningstar Quantitative Ratings for Stocks are generated using an algorithm that compares companies that are not under analyst coverage to peer companies that do receive analyst-driven ratings.
Signals were fed through a 16 channel unity gain headstage amplifier (Axona), band-pass filtered at 300–5,000 Hz, amplified 1,000–40,000 times, digitized at 50 kHz and stored for subsequent analysis.