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MULTIVARIATE STATISTICS PACKAGE SYMBOL
MultivariateTrimmedMean
gives the mean of the bivariate data matrix after dropping a fraction f of the outermost vectors.
Details
- To use
, you first need to load the Multivariate Statistics Package using Needs["MultivariateStatistics`"]. 
gives a robust estimate of the mean by excluding extreme values.- The outlying vectors are removed by repeatedly peeling off layers of convex hulls from the data until at least a fraction f have been removed.
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interpolates between the means of the points remaining before and after the last layer is removed. 
is equivalent to Mean[matrix].
approaches ConvexHullMedian[matrix] as f approaches 1.
