update kernel tutorial

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<h1>Source code for GPy</h1><div class="highlight"><pre>
<span class="c"># Copyright (c) 2012, GPy authors (see AUTHORS.txt).</span>
<span class="c"># Licensed under the BSD 3-clause license (see LICENSE.txt)</span>
<span class="kn">import</span> <span class="nn">warnings</span>
<span class="n">warnings</span><span class="o">.</span><span class="n">filterwarnings</span><span class="p">(</span><span class="s">&quot;ignore&quot;</span><span class="p">,</span> <span class="n">category</span><span class="o">=</span><span class="ne">DeprecationWarning</span><span class="p">)</span>
<span class="kn">import</span> <span class="nn">core</span>
<span class="kn">from</span> <span class="nn">core.parameterization</span> <span class="kn">import</span> <span class="n">transformations</span><span class="p">,</span> <span class="n">priors</span>
<span class="n">constraints</span> <span class="o">=</span> <span class="n">transformations</span>
<span class="kn">import</span> <span class="nn">models</span>
<span class="kn">import</span> <span class="nn">mappings</span>
<span class="kn">import</span> <span class="nn">inference</span>
<span class="kn">import</span> <span class="nn">util</span>
<span class="kn">import</span> <span class="nn">examples</span>
<span class="kn">import</span> <span class="nn">likelihoods</span>
<span class="kn">import</span> <span class="nn">testing</span>
<span class="kn">from</span> <span class="nn">numpy.testing</span> <span class="kn">import</span> <span class="n">Tester</span>
<span class="kn">import</span> <span class="nn">kern</span>
<span class="kn">import</span> <span class="nn">plotting</span>
<span class="c"># Direct imports for convenience:</span>
<span class="kn">from</span> <span class="nn">core</span> <span class="kn">import</span> <span class="n">Model</span>
<span class="kn">from</span> <span class="nn">core.parameterization</span> <span class="kn">import</span> <span class="n">Param</span><span class="p">,</span> <span class="n">Parameterized</span><span class="p">,</span> <span class="n">ObsAr</span>
<span class="c">#@nottest</span>
<span class="k">try</span><span class="p">:</span>
<span class="c">#Get rid of nose dependency by only ignoring if you have nose installed</span>
<span class="kn">from</span> <span class="nn">nose.tools</span> <span class="kn">import</span> <span class="n">nottest</span>
<span class="nd">@nottest</span>
<span class="k">def</span> <span class="nf">tests</span><span class="p">():</span>
<span class="n">Tester</span><span class="p">(</span><span class="n">testing</span><span class="p">)</span><span class="o">.</span><span class="n">test</span><span class="p">(</span><span class="n">verbose</span><span class="o">=</span><span class="mi">10</span><span class="p">)</span>
<span class="k">except</span><span class="p">:</span>
<div class="viewcode-block" id="tests"><a class="viewcode-back" href="../GPy.html#GPy.tests">[docs]</a> <span class="k">def</span> <span class="nf">tests</span><span class="p">():</span>
<span class="n">Tester</span><span class="p">(</span><span class="n">testing</span><span class="p">)</span><span class="o">.</span><span class="n">test</span><span class="p">(</span><span class="n">verbose</span><span class="o">=</span><span class="mi">10</span><span class="p">)</span>
</div>
<div class="viewcode-block" id="load"><a class="viewcode-back" href="../GPy.html#GPy.load">[docs]</a><span class="k">def</span> <span class="nf">load</span><span class="p">(</span><span class="n">file_path</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;</span>
<span class="sd"> Load a previously pickled model, using `m.pickle(&#39;path/to/file.pickle)&#39;</span>
<span class="sd"> :param file_name: path/to/file.pickle</span>
<span class="sd"> &quot;&quot;&quot;</span>
<span class="kn">import</span> <span class="nn">cPickle</span> <span class="kn">as</span> <span class="nn">pickle</span>
<span class="k">try</span><span class="p">:</span>
<span class="k">with</span> <span class="nb">open</span><span class="p">(</span><span class="n">file_path</span><span class="p">,</span> <span class="s">&#39;rb&#39;</span><span class="p">)</span> <span class="k">as</span> <span class="n">f</span><span class="p">:</span>
<span class="n">m</span> <span class="o">=</span> <span class="n">pickle</span><span class="o">.</span><span class="n">load</span><span class="p">(</span><span class="n">f</span><span class="p">)</span>
<span class="k">except</span><span class="p">:</span>
<span class="kn">import</span> <span class="nn">pickle</span> <span class="kn">as</span> <span class="nn">pickle</span>
<span class="k">with</span> <span class="nb">open</span><span class="p">(</span><span class="n">file_path</span><span class="p">,</span> <span class="s">&#39;rb&#39;</span><span class="p">)</span> <span class="k">as</span> <span class="n">f</span><span class="p">:</span>
<span class="n">m</span> <span class="o">=</span> <span class="n">pickle</span><span class="o">.</span><span class="n">load</span><span class="p">(</span><span class="n">f</span><span class="p">)</span>
<span class="k">return</span> <span class="n">m</span></div>
</pre></div>
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