How to remove outlier by 2.5 standard deviations from the mean?

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nai chen yeh 2020-3-2

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https://ww2.mathworks.cn/matlabcentral/answers/508476-how-to-remove-outlier-by-2-5-standard-deviations-from-the-mean

评论： Asger Emil Joergensen 2021-5-21

I'm really new to Matlab, and hope someone can help me!

I tried to use the function 'filloutliers' to remove and replace the outliers, but i want to detect outliers by 2.5 standard deviation instead of 3 (default).

Is it possible to do that by filloutliers, or should i use other functions?

i saw someone used plot to remove outliers, but i don't know how.

Looking forward to be answered, thanks in advance!

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采纳的回答

Adam 2020-3-2

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Looking at the help in

doc filloutliers

this should work:

filloutliers(A,'center','mean','ThresholdFactor', 2.5)

replacing A with whatever your array is called.

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nai chen yeh 2020-3-3

Thanks!

Asger Emil Joergensen 2021-5-21

Hello

What replaces the oulier in this case? The computed mean value?

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