TrimMean

Syntax

TrimMean(Data, Percent)

Parameters

Data. Array of averaged values.

Percent. Percentage of data points excluded from calculations. Available values are taken from the [0, 1] range.

Description

The method returns mean for interior of a data set.

Comments

The function calculates the mean excluding the specified percent of data with extreme values. This function can be used to exclude outliers from the analysis.

The function rounds down the number of extreme data points up to the nearest integer divisible by 2. If the percentage is 0.1, 10% of 30 data points is 3 points, but the TrimMean function excludes one value from the set beginning and one value from the set end to make the data array symmetric.