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dlmread error when performing fourier transform (FFT)

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Snow
Snow 2023-6-27
回答： Star Strider 2023-6-27
I am attempting to perform a FFT with this data, but get this dlmread error.
How can I fix this?

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Star Strider
Star Strider 2023-6-27
You could use the deprecated csvread function, however readmatrix is preferred, since the data are numeric and the variable names do not convey any useful information (if they did, readtable would be preferable).
The sampling interval appears to be 0.001, so the sampling frequency will be 1000 and the Nyquist frequency 500.

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