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help.html

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@@ -353,14 +353,14 @@ <h2><strong>Why are my changes not taking effect? It’s making my results look
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<p>Here we are creating a new object from an existing one:</p>
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<pre class="r"><code>new_rivers &lt;- sample(rivers, 5)
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new_rivers</code></pre>
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<pre><code>## [1] 890 392 315 411 460</code></pre>
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<pre><code>## [1] 2533 330 600 301 237</code></pre>
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<p>Using just this will only print the result and not actually change <code>new_rivers</code>:</p>
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<pre class="r"><code>new_rivers + 1</code></pre>
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<pre><code>## [1] 891 393 316 412 461</code></pre>
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<pre><code>## [1] 2534 331 601 302 238</code></pre>
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<p>If we want to modify <code>new_rivers</code> and save that modified version, then we need to reassign <code>new_rivers</code> like so:</p>
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<pre class="r"><code>new_rivers &lt;- new_rivers + 1
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new_rivers</code></pre>
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<pre><code>## [1] 891 393 316 412 461</code></pre>
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<pre><code>## [1] 2534 331 601 302 238</code></pre>
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<p>If we forget to reassign this can cause subsequent steps to not work as expected because we will not be working with the data that has been modified.</p>
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<hr />
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</div>
@@ -409,7 +409,7 @@ <h2><strong>Error: object ‘X’ not found</strong></h2>
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<p>Make sure you run something like this, with the <code>&lt;-</code> operator:</p>
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<pre class="r"><code>rivers2 &lt;- new_rivers + 1
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rivers2</code></pre>
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<pre><code>## [1] 892 394 317 413 462</code></pre>
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<pre><code>## [1] 2535 332 602 303 239</code></pre>
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<hr />
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</div>
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<div id="error-unexpected-in-error-unexpected-in-error-unexpected-x-in" class="section level2">

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