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‎0_02_R_and_RStudio.Rmd ‎0_01_R_and_RStudio.Rmd

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‎1_02_R_calculator.Rmd

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### Basic arithmetic
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At the end of the last chapter we saw that R can apparently handle familiar arithmetic operations: addition, subtraction, multiplication, division. If we want to add or subtract a pair of numbers just place the `+` or `-` symbol in between two numbers, hit Enter, and R will read the expression, evaluate it, and print the result to the Console. This works exactly as we expect it to:
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The end of the [Get up and running with R and RStudio] chapter demonstrated that R can handle familiar arithmetic operations: addition, subtraction, multiplication, division. If we want to add or subtract a pair of numbers just place the `+` or `-` symbol in between two numbers, hit Enter, and R will read the expression, evaluate it, and print the result to the Console. This works exactly as we expect it to:
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```{r}
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3 + 2
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<li class="chapter" data-level="0.1" data-path="index.html"><a href="index.html#aims"><i class="fa fa-check"></i><b>0.1</b> Aims</a><ul>
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<li class="chapter" data-level="0.1.1" data-path="index.html"><a href="index.html#topics"><i class="fa fa-check"></i><b>0.1.1</b> Topics</a></li>
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<li class="chapter" data-level="" data-path="expected-learning-outcomes.html"><a href="expected-learning-outcomes.html"><i class="fa fa-check"></i>Expected learning outcomes</a><ul>
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<li class="chapter" data-level="" data-path="expected-learning-outcomes.html"><a href="expected-learning-outcomes.html#introduction-to-r"><i class="fa fa-check"></i>Introduction to R</a></li>
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<li class="chapter" data-level="" data-path="expected-learning-outcomes.html"><a href="expected-learning-outcomes.html#data-wrangling"><i class="fa fa-check"></i>Data Wrangling</a></li>
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<li class="chapter" data-level="" data-path="expected-learning-outcomes.html"><a href="expected-learning-outcomes.html#exporing-data"><i class="fa fa-check"></i>Exporing Data</a></li>
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<li class="chapter" data-level="0.2" data-path="index.html"><a href="index.html#howto-use"><i class="fa fa-check"></i><b>0.2</b> How to use the book</a></li>
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<li class="chapter" data-level="0.3" data-path="index.html"><a href="index.html#help"><i class="fa fa-check"></i><b>0.3</b> Getting help</a></li>
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<li class="chapter" data-level="0.4" data-path="index.html"><a href="index.html#updates"><i class="fa fa-check"></i><b>0.4</b> Updates</a></li>
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<li class="chapter" data-level="" data-path="get-up-and-running-with-r-and-rstudio.html"><a href="get-up-and-running-with-r-and-rstudio.html"><i class="fa fa-check"></i>Get up and running with R and RStudio</a><ul>
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<h2><span class="header-section-number">1.1</span> Using R as a big calculator</h2>
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<h3><span class="header-section-number">1.1.1</span> Basic arithmetic</h3>
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<p>At the end of the last chapter we saw that R can apparently handle familiar arithmetic operations: addition, subtraction, multiplication, division. If we want to add or subtract a pair of numbers just place the <code>+</code> or <code>-</code> symbol in between two numbers, hit Enter, and R will read the expression, evaluate it, and print the result to the Console. This works exactly as we expect it to:</p>
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<p>The end of the <a href="get-up-and-running-with-r-and-rstudio.html#get-up-and-running-with-r-and-rstudio">Get up and running with R and RStudio</a> chapter demonstrated that R can handle familiar arithmetic operations: addition, subtraction, multiplication, division. If we want to add or subtract a pair of numbers just place the <code>+</code> or <code>-</code> symbol in between two numbers, hit Enter, and R will read the expression, evaluate it, and print the result to the Console. This works exactly as we expect it to:</p>
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<div class="sourceCode"><pre class="sourceCode r"><code class="sourceCode r"><span class="dv">3</span> +<span class="st"> </span><span class="dv">2</span></code></pre></div>
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<pre><code>## [1] 5</code></pre>
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