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March 3, 2017 06:17
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Python - Distância euclidiana
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| # distância euclidiana | |
| import math | |
| v1 = [1.2, 2, 3.8, 4.5] | |
| v2 = [0.5, 4.5, 9.6, 3.4] | |
| def dist_euclidiana(v1, v2): | |
| dim, soma = len(v1), 0 | |
| for i in range(dim): | |
| soma += math.pow(v1[i] - v2[i], 2) | |
| return math.sqrt(soma) | |
| print('%.2f' % dist_euclidiana(v1, v2)) | |
| # distância euclidiana com numpy | |
| import numpy as np | |
| '' | |
| def dist_euclidiana_np(v1, v2): | |
| v1, v2 = np.array(v1), np.array(v2) | |
| diff = v1 - v2 | |
| quad_dist = np.dot(diff, diff) | |
| return math.sqrt(quad_dist) | |
| print('%.2f' % dist_euclidiana_np(v1, v2)) |
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