擅长:python、mysql、java
<p>从<a href="http://scikit-learn.org/stable/modules/generated/sklearn.neighbors.KDTree.html" rel="nofollow noreferrer">documentation</a>,可以使用方法<code>query_radius</code>:</p>
<p>查询给定半径内的邻居:</p>
<pre><code>import numpy as np
np.random.seed(0)
X = np.random.random((10, 3)) # 10 points in 3 dimensions
tree = KDTree(X, leaf_size=2)
print(tree.query_radius(X[0], r=0.3, count_only=True))
ind = tree.query_radius(X[0], r=0.3) # indices of neighbors within distance 0.3
</code></pre>
<p>这项工作与sklearn版本19.1</p>