Statistics Toolbox™

geomean - Geometric mean

Syntax

m = geomean(x)
geomean(X,dim)

Description

m = geomean(x) calculates the geometric mean of a sample. For vectors, geomean(x) is the geometric mean of the elements in x. For matrices, geomean(X) is a row vector containing the geometric means of each column. For N-dimensional arrays, geomean operates along the first nonsingleton dimension of X.

geomean(X,dim) takes the geometric mean along the dimension dim of X.

The geometric mean is

Examples

The arithmetic mean is greater than or equal to the geometric mean.

x = exprnd(1,10,6);

geometric = geomean(x)
geometric =
  0.7466  0.6061  0.6038  0.2569  0.7539  0.3478

average = mean(x)
average =
  1.3509  1.1583  0.9741  0.5319  1.0088  0.8122

See Also

mean, median, harmmean, trimmean

geoinv

geopdf