擅长:python、mysql、java
<p>我想numpy的<a href="http://docs.scipy.org/doc/numpy/reference/generated/numpy.lexsort.html#numpy.lexsort" rel="nofollow noreferrer">lexsort</a>可以满足你的分类需求。在</p>
<p>总的来说,我认为你的步骤是:</p>
<ol>
<li><p>把csv读入numpy数组有没有试过python的<a href="http://docs.python.org/library/csv.html" rel="nofollow noreferrer">csv package</a>或numpy的<a href="http://docs.scipy.org/doc/numpy/reference/generated/numpy.genfromtxt.html" rel="nofollow noreferrer">^{<cd1>} function</a>?</p></li>
<li><p>使用lexsort进行排序</p></li>
<li><p>删去不必要的行</p></li>
</ol>
<p>编辑:参见<a href="https://stackoverflow.com/questions/2706605/sorting-a-2d-numpy-array-by-multiple-axes">this related SO question</a>。在</p>