擅长:python、mysql、java
<p><code>.T</code>访问对象的属性<code>T</code>,该属性恰好是一个NumPy数组。属性是数组的转置,请参见<a href="http://docs.scipy.org/doc/numpy-1.5.x/reference/generated/numpy.ndarray.T.html#numpy.ndarray.T" rel="noreferrer">the documentation</a>。</p>
<p>显然你在平面上创建了随机坐标。<code>multivariate_normal()</code>的输出可能如下所示:</p>
<pre><code>>>> np.random.multivariate_normal([0, 0], [[1, 0], [0, 1]], 5)
array([[ 0.59589335, 0.97741328],
[-0.58597307, 0.56733234],
[-0.69164572, 0.17840394],
[-0.24992978, -2.57494471],
[ 0.38896689, 0.82221377]])
</code></pre>
<p>此矩阵的转置为:</p>
<pre><code>array([[ 0.59589335, -0.58597307, -0.69164572, -0.24992978, 0.38896689],
[ 0.97741328, 0.56733234, 0.17840394, -2.57494471, 0.82221377]])
</code></pre>
<p>通过顺序拆包可以方便地将其分为<code>x</code>和<code>y</code>两部分。</p>