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Define X

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Jessica B. Hamrick
2016-07-14 15:29:37 -05:00
parent 77dc7a6da2
commit c5e1d52d30
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@@ -956,6 +956,7 @@ the rows which only contain integers and which sum to n. (★★★)</p>
<pre class="code python literal-block">
<span class="comment single"># Author: Jessica B. Hamrick</span>
<span class="name">X</span> <span class="operator">=</span> <span class="name">np</span><span class="operator">.</span><span class="name">random</span><span class="operator">.</span><span class="name">randn</span><span class="punctuation">(</span><span class="literal number integer">100</span><span class="punctuation">)</span> <span class="comment single"># random 1D array</span>
<span class="name">N</span> <span class="operator">=</span> <span class="literal number integer">1000</span> <span class="comment single"># number of bootstrap samples</span>
<span class="name">idx</span> <span class="operator">=</span> <span class="name">np</span><span class="operator">.</span><span class="name">random</span><span class="operator">.</span><span class="name">randint</span><span class="punctuation">(</span><span class="literal number integer">0</span><span class="punctuation">,</span> <span class="name">X</span><span class="operator">.</span><span class="name">size</span><span class="punctuation">,</span> <span class="punctuation">(</span><span class="name">N</span><span class="punctuation">,</span> <span class="name">X</span><span class="operator">.</span><span class="name">size</span><span class="punctuation">))</span>
<span class="name">means</span> <span class="operator">=</span> <span class="name">X</span><span class="punctuation">[</span><span class="name">idx</span><span class="punctuation">]</span><span class="operator">.</span><span class="name">mean</span><span class="punctuation">(</span><span class="name">axis</span><span class="operator">=</span><span class="literal number integer">1</span><span class="punctuation">)</span>