距离矩阵的坐标列表

Question

我有一个包含 8 个坐标的列表，存储为列表列表：

coordinates = [[47.2486, -1.54806],
               [43.5656, 1.47417],
               [48.3592, -4.57],
               [48.1439, 17.1097],
               [39.6275, 140.198],
               [30.0458, 31.2625],
               [38.9371, -77.0869],
               [33.9, 35.4823]]

使用以下脚本，我寻求输出坐标矩阵：

import numpy
from scipy.spatial.distance import pdist

coordinates_array = numpy.array(coordinates)
dist_array = pdist(coordinates_array)

dist_matrix = numpy.reshape(dist_array, newshape=(len(coordinates), len(coordinates)))

然而，我得到了 ValueError: total size of new array must be unchanged。这是为什么？

Answer 1

如scipy文档中所述，使用scipy.spatial.distance.squareform将pdist返回的压缩距离矩阵转换为平方距离矩阵，

from scipy.spatial.distance import squareform 

dist_matrix = squareform(dist_array)

距离矩阵的坐标列表

List of coordinates to matrix of distances

python

numpy

matrix

distance