belltailjp
/ cmdscale.py
Last active
June 17, 2019 21:55
Multi-Dimensional Scaling (also as known as Principal Coordinate Analysis) by Python
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| import matplotlib.pyplot as plt | |
| import numpy as np | |
| from sklearn import manifold | |
| cities = "Athens Barcelona Brussels Calais Cherbourg Cologne Copenhagen Geneva Gibraltar Hamburg HookOfHolland Lisbon Lyons Madrid Marseilles Milan Munich Paris Rome Stockholm Vienna".split(" ") | |
| d = np.array([ | |
| # from eurodist dataset: https://rstudio-pubs-static.s3.amazonaws.com/221886_5c57ad0f5ff546e8af6386162f29fabc.html | |
| [ 0, 3313, 2963, 3175, 3339, 2762, 3276, 2610, 4485, 2977, 3030, 4532, 2753, 3949, 2865, 2282, 2179, 3000, 817, 3927, 1991], | |
| [3313, 0, 1318, 1326, 1294, 1498, 2218, 803, 1172, 2018, 1490, 1305, 645, 636, 521, 1014, 1365, 1033, 1460, 2868, 1802], | |
| [2963, 1318, 0, 204, 583, 206, 966, 677, 2256, 597, 172, 2084, 690, 1558, 1011, 925, 747, 285, 1511, 1616, 1175], |