TrimmedMean

TrimmedMean[list, f] gives the mean of the elements in list after dropping a fraction f of the smallest and largest elements.

• TrimmedMean[list, {f1, f2}] gives the mean when a fraction f1 of the smallest elements and a fraction f2 of the largest elements are removed.
• TrimmedMean[list] gives the 5% trimmed mean TrimmedMean[list, 0.05].
• TrimmedMean[dist, ...] gives the trimmed mean of a univariate distribution dist.

Examples

5% trimmed mean (default):

TrimmedMean[{1, 2, 3, 4, 5, 100}]

10% trimmed mean:

TrimmedMean[{1, 2, 3, 4, 5, 6, 7, 8, 9, 100}, 0.1]

Asymmetric trimming:

TrimmedMean[Range[100], {0.1, 0.2}]

Please visit the official Wolfram Language Reference for more details.