Moving Skewness and moving kurtosis

4 次查看（过去 30 天）
Katrina Anderson
Katrina Anderson 2018-10-26
评论： Leo Ge 2018-11-26
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.

请先登录，再回答此问题。

回答（1 个）

Image Analyst
Image Analyst 2018-10-26
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 个评论
Leo Ge
Leo Ge 2018-11-26
You may not know the huge difference of time consumption between "movavg()" and "loop+mean()".

请先登录，再进行评论。

类别

在 Help Center 和 File Exchange 中查找有关 Statistics and Machine Learning Toolbox 的更多信息

标签

产品

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by