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href="../faq/cluster/index_cn.html">集群训练与预测</a></li> </ul> </li> </ul> </nav> <section class="doc-content-wrap"> <div role="navigation" aria-label="breadcrumbs navigation"> <ul class="wy-breadcrumbs"> <li>新手入门</li> </ul> </div> <div class="wy-nav-content" id="doc-content"> <div class="rst-content"> <div role="main" class="document" itemscope="itemscope" itemtype="http://schema.org/Article"> <div itemprop="articleBody"> <div class="section" id="id1"> <h1>新手入门<a class="headerlink" href="#id1" title="永久链接至标题">¶</a></h1> <div class="section" id="quick-install"> <span id="id2"></span><h2>快速安装<a class="headerlink" href="#quick-install" title="永久链接至标题">¶</a></h2> <p>PaddlePaddle支持使用pip快速安装,目前支持CentOS 6以上, Ubuntu 14.04以及MacOS 10.12,并安装有Python2.7。 执行下面的命令完成快速安装,版本为cpu_avx_openblas:</p> <blockquote> <div><div class="highlight-bash"><div class="highlight"><pre><span></span>pip install paddlepaddle </pre></div> </div> </div></blockquote> <p>如果需要安装支持GPU的版本(cuda7.5_cudnn5_avx_openblas),需要执行:</p> <blockquote> <div><div class="highlight-bash"><div class="highlight"><pre><span></span>pip install paddlepaddle-gpu </pre></div> </div> </div></blockquote> <p>更详细的安装和编译方法参考:</p> <div class="toctree-wrapper compound"> <ul> <li class="toctree-l1"><a class="reference internal" href="build_and_install/index_cn.html">安装与编译</a></li> </ul> </div> </div> <div class="section" id="quick-start"> <span id="id3"></span><h2>快速开始<a class="headerlink" href="#quick-start" title="永久链接至标题">¶</a></h2> <p>创建一个 housing.py 并粘贴此Python代码:</p> <blockquote> <div><div class="highlight-python"><div class="highlight"><pre><span></span><span class="kn">import</span> <span class="nn">paddle.v2</span> <span class="kn">as</span> <span class="nn">paddle</span> <span class="c1"># Initialize PaddlePaddle.</span> <span class="n">paddle</span><span class="o">.</span><span class="n">init</span><span class="p">(</span><span class="n">use_gpu</span><span class="o">=</span><span class="bp">False</span><span class="p">,</span> <span class="n">trainer_count</span><span class="o">=</span><span class="mi">1</span><span class="p">)</span> <span class="c1"># Configure the neural network.</span> <span class="n">x</span> <span class="o">=</span> <span class="n">paddle</span><span class="o">.</span><span class="n">layer</span><span class="o">.</span><span class="n">data</span><span class="p">(</span><span class="n">name</span><span class="o">=</span><span class="s1">'x'</span><span class="p">,</span> <span class="nb">type</span><span class="o">=</span><span class="n">paddle</span><span class="o">.</span><span class="n">data_type</span><span class="o">.</span><span class="n">dense_vector</span><span class="p">(</span><span class="mi">13</span><span class="p">))</span> <span class="n">y_predict</span> <span class="o">=</span> <span class="n">paddle</span><span class="o">.</span><span class="n">layer</span><span class="o">.</span><span class="n">fc</span><span class="p">(</span><span class="nb">input</span><span class="o">=</span><span class="n">x</span><span class="p">,</span> <span class="n">size</span><span class="o">=</span><span class="mi">1</span><span class="p">,</span> <span class="n">act</span><span class="o">=</span><span class="n">paddle</span><span class="o">.</span><span class="n">activation</span><span class="o">.</span><span class="n">Linear</span><span class="p">())</span> <span class="c1"># Infer using provided test data.</span> <span class="n">probs</span> <span class="o">=</span> <span class="n">paddle</span><span class="o">.</span><span class="n">infer</span><span class="p">(</span> <span class="n">output_layer</span><span class="o">=</span><span class="n">y_predict</span><span class="p">,</span> <span class="n">parameters</span><span class="o">=</span><span class="n">paddle</span><span class="o">.</span><span class="n">dataset</span><span class="o">.</span><span class="n">uci_housing</span><span class="o">.</span><span class="n">model</span><span class="p">(),</span> <span class="nb">input</span><span class="o">=</span><span class="p">[</span><span class="n">item</span> <span class="k">for</span> <span class="n">item</span> <span class="ow">in</span> <span class="n">paddle</span><span class="o">.</span><span class="n">dataset</span><span class="o">.</span><span class="n">uci_housing</span><span class="o">.</span><span class="n">test</span><span class="p">()()])</span> <span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="nb">xrange</span><span class="p">(</span><span class="nb">len</span><span class="p">(</span><span class="n">probs</span><span class="p">)):</span> <span class="k">print</span> <span class="s1">'Predicted price: ${:,.2f}'</span><span class="o">.</span><span class="n">format</span><span class="p">(</span><span class="n">probs</span><span class="p">[</span><span class="n">i</span><span class="p">][</span><span class="mi">0</span><span class="p">]</span> <span class="o">*</span> <span class="mi">1000</span><span class="p">)</span> </pre></div> </div> </div></blockquote> <p>执行 <code class="code docutils literal"><span class="pre">python</span> <span class="pre">housing.py</span></code> 瞧! 它应该打印出预测住房数据的清单。</p> <div class="toctree-wrapper compound"> <ul> <li class="toctree-l1"><a class="reference internal" href="concepts/use_concepts_cn.html">基本使用概念</a></li> </ul> </div> </div> </div> </div> </div> <footer> <div class="rst-footer-buttons" role="navigation" aria-label="footer navigation"> <a href="build_and_install/index_cn.html" class="btn btn-neutral float-right" title="安装与编译" accesskey="n">Next <span class="fa fa-arrow-circle-right"></span></a> <a href="../index_cn.html" class="btn btn-neutral" title="PaddlePaddle 文档" accesskey="p"><span class="fa fa-arrow-circle-left"></span> Previous</a> </div> <hr/> <div role="contentinfo"> <p> © Copyright 2016, PaddlePaddle developers. </p> </div> Built with <a href="http://sphinx-doc.org/">Sphinx</a> using a <a 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