scipy stats . hme man()| python

哎哎哎:# t0]https://www . geeksforgeeks . org/scipy-stats-hme man-python/

**scipy.stats.hmean(array, axis=0, dtype=None)**计算数组元素沿数组指定轴的调和平均值(python 中的列表)。

是公式–

参数: 数组:输入有计算调和平均值元素的数组或对象。 轴:计算平均值的轴。默认轴= 0 数据类型:可选。它设置返回元素的类型。

根据设定的参数返回:数组元素的调和平均值。

代码#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

代码#2: 多维数据

# 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       ]

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