Smooth a time serie not afectig max/minimun data?
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Hello, I'm trying to find a way to smooth the data without afecting the max/min values of the time serie,
like generate/fitting a sinusoidal serie in where values at the edges (orange and yellow line) will no be affected by the method, I will apreciate any suggestion, thaks.

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Star Strider
il 24 Gen 2024
See if the Signal Processing Toolbox envelope function will do what you want. Choose the 'peak' option, and experiment with the 'np' argument to get the result you want.
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