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1995-03-11
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452b
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10 lines
FREQ for Windows: Beyond Fourier Transforms
FREQ 2.1 is a data analysis tool which
determines what sine waves make up a data set
or time series: periods, amplitudes, phases,
percent relative power). Specify the periods
you believe are present, and FREQ tests those
periods and graphically assembles selected
waves into a revealing portrait of your data.
You can't get this from an FFT without much
work and specialized training. From CoDebris.