# sciPy stats.gmean() function | Python

`scipy.stats.gmean(array, axis=0, dtype=None)` calculates the geometric mean of the array elements along the specified axis of the array (list in python).

It’s formula – Parameters :
array: Input array or obejct having the elements to calculate the geometric mean.
axis: Axis along which the mean is to be computed. By default axis = 0
dtype: It sets the type of returned element.

Returns : Geometric mean of the array elements based on the set parameters.

Code #1:

 `# Geometric Mean  ` ` `  `from` `scipy.stats.mstats ``import` `gmean  ` `arr1 ``=` `gmean([``1``, ``3``, ``27``])  ` `  `  `print``(``"Geometric Mean is :"``, arr1)  `

Output:

```Geometric Mean is : 4.32674871092
```

Code #2: With multi-dimensional data

 `# Geometric Mean  ` ` `  `from` `scipy.stats.mstats ``import` `gmean ` `arr1 ``=` `[[``1``, ``3``, ``27``],  ` `        ``[``3``, ``4``, ``6``],  ` `        ``[``7``, ``6``, ``3``],  ` `        ``[``3``, ``6``, ``8``]]  ` `  `  `print``(``"Geometric Mean is :"``, gmean(arr1))  ` ` `  `# using axis = 0 ` `print``(``"\nGeometric Mean is with default axis = 0 : \n"``,  ` `      ``gmean(arr1, axis ``=` `0``)) ` ` `  `# using axis = 1 ` `print``(``"\nGeometric Mean is with default axis = 1 : \n"``,  ` `      ``gmean(arr1, axis ``=` `1``))   `

Output:

```Geometric Mean is : [ 2.81731325  4.55901411  7.89644408]

Geometric Mean is with default axis = 0 :
[ 2.81731325  4.55901411  7.89644408]

Geometric Mean is with default axis = 1 :
[ 4.32674871  4.16016765  5.01329793  5.24148279]
```

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