To discard extreme observations in a sample. The remaining values are regarded to be more typical of the behaviours, though it is important to realize that this is not always appropriate. The trimmed mean will be the arithmetic mean of the trimmed set.
Computer
(of an array) The array obtained by constraining the subscripts to lie in some specified subrange. For example, the trim of a vector
obtained by constraining the index i so that 3 ≤ i ≤ 7 is the vectorSee alsoslice.