Removing outliers from data

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AU 2019-5-31

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/464922-removing-outliers-from-data

编辑： Adam 2019-5-31

How can I remove outliers of a vector where an outlier is defined as a point more than three standard deviations from the mean of the data in matlab 2R2017b? I also want to remove outliers using a 10 day moving average or a smoothed average.

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Answer 1

Adam 2019-5-31

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/464922-removing-outliers-from-data#answer_377329

编辑：Adam 2019-5-31

在 MATLAB Online 中打开

threshold = 3 * std( data );
validRange = mean( data ) + [-1 1] * threshold;
dataWithoutOutliers = data( data >= validRange(1) & data <= validRange(2) );

should do the first bit, though that is typed off the top of my head, not tested.

doc movmean

should help with a moving average if you are using R2016a or later.

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AU 2019-5-31

Thank you for the answer Adam. The last line gives me the error: Operands to the || and && operators must be convertible to logical scalar values. How can I solve it?