Discrete Fourier transform of Time series

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Osman Yakubu
Osman Yakubu 2019-1-30
回答： Star Strider 2019-1-30
I have data of electricity consumption by date, I need a matlab code;
  1. to convert the data to frequencies
  2. to use low pass filter to get the low frequencies based on a frequency cut off.
Thanks

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回答（1 个）

Star Strider
Star Strider 2019-1-30
See the documentation on fft (link), and the documentation on lowpass (link). (The lowpass function was introduced in R2018a.)

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