https://elated-raman-42e0c2.netlify.app/tags/numpy/Recent content in Numpy on Sawyer Zheng's BlogHugozh-cnTue, 16 Jul 2024 11:28:46 +0800https://elated-raman-42e0c2.netlify.app/post/notes/python/numpy/Mon, 07 Sep 2020 00:00:00 +0000https://elated-raman-42e0c2.netlify.app/post/notes/python/numpy/<div id="outline-container-headline-1" class="outline-2"> <h2 id="headline-1"> 教程 </h2> <div id="outline-text-headline-1" class="outline-text-2"> <ul> <li> <p><a href="https://github.com/yishuixing/numpy-tutorial">https://github.com/yishuixing/numpy-tutorial</a></p> <ul> <li><a href="https://www.bilibili.com/video/BV1SJ411S7aC?from=search&amp;seid=3656485085140029237">视频教程</a></li> </ul> </li> </ul> </div> </div> <div id="outline-container-headline-2" class="outline-2"> <h2 id="headline-2"> 概念 </h2> <div id="outline-text-headline-2" class="outline-text-2"> <div id="outline-container-headline-3" class="outline-3"> <h3 id="headline-3"> Axis </h3> <div id="outline-text-headline-3" class="outline-text-3"> <ul> <li> <p>用途</p> <ul> <li>用来说明维度，第几个维度</li> </ul> </li> <li> <p>取值</p> <dl> <dt> 0 </dt> <dd>row, 行</dd> <dt> 1 </dt> <dd>column, 列</dd> <dt> 2 </dt> <dd>panel, 层</dd> <dt> -1 </dt> <dd>last, 最后一维</dd> </dl> </li> <li> <p>使用场景</p> <ul> <li> <p>np.stack</p> <ul> <li>axis 直接指定堆叠操作的维度，其它维度，依次用单个元素的 shape 成员取代</li> <li> <p>0 – 把数据在不同的行之间堆叠</p>