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# scipy.stats.mstats.gmean

`scipy.stats.mstats.``gmean`(a, axis=0)

  Compute the geometric mean along the specified axis.

  Returns the geometric average of the array elements. That is: n-th root of (x1 * x2 * ... * xn)

  Parameters : | a : array_like Input array or object that can be converted to an array. axis : int, optional, default axis=0 Axis along which the geometric mean is computed. dtype : dtype, optional Type of the returned array and of the accumulator in which the elements are summed. If dtype is not specified, it defaults to the dtype of a, unless a has an integer dtype with a precision less than that of the default platform integer. In that case, the default platform integer is used.
  Returns : | gmean : ndarray, see dtype parameter above

  See also

  `numpy.mean`
    Arithmetic average
  `numpy.average`
    Weighted average
  `hmean`
    Harmonic mean

  Notes

  The geometric average is computed over a single dimension of the input array, axis=0 by default, or all values in the array if axis=None. float64 intermediate and return values are used for integer inputs.

  Use masked arrays to ignore any non-finite values in the input or that arise in the calculations such as Not a Number and infinity because masked arrays automatically mask any non-finite values.

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