title: Why use only the first column from the distances?
body: <p>I have a clustering (Kmeans was applied and clusters were obtained). The radius for each cluster is being calculated between the center and the observations.</p>
  <p>I don't understand this here <code>[:, 0]</code> I know we're taking all observations from the first column but why not take the second column as well? What does <code>[:, 0]</code> represent?</p>
  <pre><code>X_distances = euclidean_distances(X, [center])[:, 0]
  radius = np.max(X_distances)
  </code></pre>