"Identify and Replace Outliers in a Numeric Array" - MATLAB Cody - MATLAB Central

Problem 60831. "Identify and Replace Outliers in a Numeric Array"

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Given a numeric array, identify outliers that are more than two standard deviations away from the mean and replace them with the mean of the non-outlier values.
Example:
Input:
x = [10, 12, 11, 50, 13, 9, 12, 8, 11, 200];
Processing:
  • The mean and standard deviation of the array are calculated.
  • Values that are more than 2 standard deviations from the mean are considered outliers.
  • Outliers are replaced by the mean of the remaining non-outlier elements.
Output:
y = [10, 12, 11, 13, 13, 9, 12, 8, 11, 13];
Solve

Solution Stats

81.82% Correct | 18.18% Incorrect
Last Solution submitted on Mar 30, 2025

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