scipy.stats.hmean(array, axis=0, dtype=None) calculates the harmonic mean of the array elements along the specified axis of the array (list in python).
It’s formula –
Parameters :
array: Input array or object having the elements to calculate the harmonic mean.
axis: Axis along which the mean is to be computed. By default axis = 0
dtype: Optional. It sets the type of returned element.Returns : Harmonic mean of the array elements based on the set parameters.
Code #1:
# Harmonic Mean from scipy.stats.mstats import hmean arr1 = hmean([1, 3, 27]) print("Harmonic Mean is :", arr1) |
Output:
Harmonic Mean is : 2.18918918919
Code #2: With multi-dimensional data
# Harmonic Mean from scipy.stats.mstats import hmean arr1 = [[1, 3, 27], [3, 4, 6], [7, 6, 3], [3, 6, 8]] print("\nHarmonic Mean is :", hmean(arr1)) # using axis = 0 print("\nHarmonic Mean is with default axis = 0 : \n", hmean(arr1, axis = 0)) # using axis = 1 print("\nHarmonic Mean is with default axis = 1 : \n", hmean(arr1, axis = 1)) |
Output:
Harmonic Mean is : [ 2.21052632 4.36363636 6.04195804] Harmonic Mean is with default axis = 0 : [ 2.21052632 4.36363636 6.04195804] Harmonic Mean is with default axis = 1 : [ 2.18918919 4. 4.66666667 4.8 ]
