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# 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.

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