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What is the meaning of Spectral Analysis?

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Spectrum analysis is said to be the original scientific technique of charting and also analyzing the chemical properties of matter and gases. This is done by looking at the bands in their optical spectrum. Read more at http://en.wikipedia.org/wiki/Spectrum_analysis.

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Spectral analysis in statistics, a procedure that decomposes a time series into a spectrum of cycles of different lengths. Spectral analysis is also known as frequency domain analysis.

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