擅长:python、mysql、java
<p>这在<a href="https://docs.scipy.org/doc/numpy/reference/generated/numpy.linalg.svd.html" rel="nofollow noreferrer">docs</a>中非常清楚,您将看到:</p>
<blockquote>
<p><strong>s : (…, K) array</strong>: Vector(s) with the singular values, within each vector sorted in descending order. The first a.ndim - 2 dimensions have the same size as those of the input a.</p>
</blockquote>
<p>所以基本上<code>S</code>就是你提到的矩阵的对角线,也就是奇异值。可以使用以下方法从中构造对角矩阵:</p>
<pre><code>np.diag(S)
</code></pre>