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Scilab Help >> Statistics > Central Tendency > geomean

# geomean

geometric mean

### Calling Sequence

```gm=geomean(x)
gm=geomean(x,'r')(or, equivalently, gm=geomean(x,1))
gm=geomean(x,'c')(or, equivalently, gm=geomean(x,2))```

### Arguments

x

real or complex vector or matrix

### Description

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`.

### Examples

`geomean(1:10) // Returns factorial(10)^(1/10) = 4.5287286881167648`

### Bibliography

Wonacott, T.H. & Wonacott, R.J.; Introductory Statistics, fifth edition, J.Wiley & Sons, 1990.