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Moving Skewness and moving kurtosis

4 vues (au cours des 30 derniers jours)
Katrina Anderson
Katrina Anderson le 26 Oct 2018
Commenté : Leo Ge le 26 Nov 2018
Hi, I am trying to figure out how to calculate the kurtosis and skewness during a 1 second time frame of data (500 points) moving through my entire data. I have figured out mean, median, std etc. But I am unsure how to calculate this.
I have 9 axis of data from an IMU, so i wish to calculate this moving skewness and kurtosis for each axis.
Thankyou for your help.

Réponses (1)

Image Analyst
Image Analyst le 26 Oct 2018
There are functions for skewness() and kurtosis() in the Statistics and Machine Learning Toolbox. So just program up a for loop where you move a window along and call those functions. Easy, right?
  1 commentaire
Leo Ge
Leo Ge le 26 Nov 2018
You may not know the huge difference of time consumption between "movavg()" and "loop+mean()".

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