geomean - geometric mean
This function computes the geometric mean of a vector or matrix x . For a vector or matrix x , gm=geomean(x) returns in scalar gm the geometric mean of all the entries of x .
gm=geomean(x,'r') (or, equivalently, gm=gmean(x,1) ) returns in each entry of the row vector gm the geometric mean of each column of x .
gm=geomean(x,'c') (or, equivalently, gm=gmean(x,2) ) returns in each entry of the column vector gm the geometric mean of each row of x .
Wonacott, T.H. & Wonacott, R.J.; Introductory Statistics, fifth edition, J.Wiley & Sons, 1990.