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What is frequency ?
What is frequency ?
Frequency refers to number of single periods of sine wave within one 1 second of signal. Blue line = 4 Hz, Orange line = 1 Hz.
What is magnitude ?
What is magnitude ?
Magnitude (amplitude) refers to Y range of values within signal. Signal in previous section had amplitude of one. Following signal has a magnitude of 0.5.
How to lower sampling rate ?
How to lower sampling rate ?
use downsample, remember to downsample both X and Y
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