Python–输入集合之间的距离
scipy.stats.cdist(array，axis=0) 函数计算两个输入集合的每对之间的距离。
参数: 数组:输入数组或具有计算两个输入集合的每对之间的距离的元素的对象。 轴:要沿其计算的轴。默认情况下，轴= 0
返回:两个输入集合的每对之间的距离。
代码#1 : 2D 阵
from scipy.spatial.distance import cdist
a = [[1, 3, 27], [3, 6, 8]]
arr1 = cdist(a, a)
print("Value of cdist is :", arr1)
输出:
Value of cdist is : [[ 0\. 19.33907961]
[19.33907961 0\. ]]
代码#2 : 3D 阵列
from scipy.spatial.distance import cdist
arr1 = [[1, 3, 27],
[3, 4, 6],
[7, 6, 3],
[3, 6, 8]]
print("Value of cdist is :", cdist(arr1, arr1))
输出:
Value of cdist is : [[ 0\. 21.11871208 24.91987159 19.33907961]
[21.11871208 0\. 5.38516481 2.82842712]
[24.91987159 5.38516481 0\. 6.40312424]
[19.33907961 2.82842712 6.40312424 0\. ]]
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