Sine Wave

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Sine Wave

Any curve plotted along an axis where the y-value moves above and below zero at a rate of y = sin(x). The Composite Index of Lagging Indicators is thought to be roughly a sine wave because interest rates and inflation, which make up the index, move in relation to each other in a way resembling the sine.
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References in periodicals archive ?
Caption: Figure 16: Emergence of soliton trains according to KdV2 from initial cosine wave. A = 0.3, T = 50.
Figure 19 indicates that the cosine waves for -21 degrees and that for 0 degree are nearly the same phases because the amplitude of the addition of the two waves is above 1 N, whereas the cosine waves for -34 degrees and that for 0 degree are nearly reverse phase because the amplitude of the addition of the two waves is below 1 N.
Specifically, under the assumption that each high-frequency stock return is an event that triggers momentum and reversal periodically, we decompose each future return into a collection of decaying cosine waves that are functions of past returns.
For example, the increasing-frequency (up-chirp) waveform, shown in Figure 11, was produced by applying a narrow pulse to the input of an ACT filter in which the taps had been loaded with a Hanning-weighted cosine wave with a frequency sweeping from 5 MHz to 60 MHz.
(8.) Formally, I regress the data on a series of cosine waves as described in Muller and Watson (2008, 2015).