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<img src="../logo.png" class="logo" alt=""><h1>Split a data frame into separate tables for each form</h1>
<small class="dont-index">Source: <a href="https://github.com/agdamsbo/REDCapCAST/blob/HEAD/R/utils.r" class="external-link"><code>R/utils.r</code></a></small>
<div class="d-none name"><code>split_non_repeating_forms.Rd</code></div>
</div>
<div class="ref-description section level2">
<p>Split a data frame into separate tables for each form</p>
</div>
<div class="section level2">
<h2 id="ref-usage">Usage<a class="anchor" aria-label="anchor" href="#ref-usage"></a></h2>
<div class="sourceCode"><pre class="sourceCode r"><code><span><span class="fu">split_non_repeating_forms</span><span class="op">(</span><span class="va">table</span>, <span class="va">universal_fields</span>, <span class="va">fields</span><span class="op">)</span></span></code></pre></div>
</div>
<div class="section level2">
<h2 id="arguments">Arguments<a class="anchor" aria-label="anchor" href="#arguments"></a></h2>
<dl><dt>table</dt>
<dd><p>A data frame</p></dd>
<dt>universal_fields</dt>
<dd><p>A character vector of fields that should be included
in every table</p></dd>
<dt>fields</dt>
<dd><p>A two-column matrix containing the names of fields that should
be included in each form</p></dd>
</dl></div>
<div class="section level2">
<h2 id="value">Value<a class="anchor" aria-label="anchor" href="#value"></a></h2>
<p>A list of data frames, one for each non-repeating form</p>
</div>
<div class="section level2">
<h2 id="ref-examples">Examples<a class="anchor" aria-label="anchor" href="#ref-examples"></a></h2>
<div class="sourceCode"><pre class="sourceCode r"><code><span class="r-in"><span><span class="co"># Create a table</span></span></span>
<span class="r-in"><span><span class="va">table</span> <span class="op">&lt;-</span> <span class="fu"><a href="https://rdrr.io/r/base/data.frame.html" class="external-link">data.frame</a></span><span class="op">(</span></span></span>
<span class="r-in"><span> id <span class="op">=</span> <span class="fu"><a href="https://rdrr.io/r/base/c.html" class="external-link">c</a></span><span class="op">(</span><span class="fl">1</span>, <span class="fl">2</span>, <span class="fl">3</span>, <span class="fl">4</span>, <span class="fl">5</span><span class="op">)</span>,</span></span>
<span class="r-in"><span> form_a_name <span class="op">=</span> <span class="fu"><a href="https://rdrr.io/r/base/c.html" class="external-link">c</a></span><span class="op">(</span><span class="st">"John"</span>, <span class="st">"Alice"</span>, <span class="st">"Bob"</span>, <span class="st">"Eve"</span>, <span class="st">"Mallory"</span><span class="op">)</span>,</span></span>
<span class="r-in"><span> form_a_age <span class="op">=</span> <span class="fu"><a href="https://rdrr.io/r/base/c.html" class="external-link">c</a></span><span class="op">(</span><span class="fl">25</span>, <span class="fl">30</span>, <span class="fl">25</span>, <span class="fl">15</span>, <span class="fl">20</span><span class="op">)</span>,</span></span>
<span class="r-in"><span> form_b_name <span class="op">=</span> <span class="fu"><a href="https://rdrr.io/r/base/c.html" class="external-link">c</a></span><span class="op">(</span><span class="st">"John"</span>, <span class="st">"Alice"</span>, <span class="st">"Bob"</span>, <span class="st">"Eve"</span>, <span class="st">"Mallory"</span><span class="op">)</span>,</span></span>
<span class="r-in"><span> form_b_gender <span class="op">=</span> <span class="fu"><a href="https://rdrr.io/r/base/c.html" class="external-link">c</a></span><span class="op">(</span><span class="st">"M"</span>, <span class="st">"F"</span>, <span class="st">"M"</span>, <span class="st">"F"</span>, <span class="st">"F"</span><span class="op">)</span></span></span>
<span class="r-in"><span><span class="op">)</span></span></span>
<span class="r-in"><span></span></span>
<span class="r-in"><span><span class="co"># Create the universal fields</span></span></span>
<span class="r-in"><span><span class="va">universal_fields</span> <span class="op">&lt;-</span> <span class="fu"><a href="https://rdrr.io/r/base/c.html" class="external-link">c</a></span><span class="op">(</span><span class="st">"id"</span><span class="op">)</span></span></span>
<span class="r-in"><span></span></span>
<span class="r-in"><span><span class="co"># Create the fields</span></span></span>
<span class="r-in"><span><span class="va">fields</span> <span class="op">&lt;-</span> <span class="fu"><a href="https://rdrr.io/r/base/matrix.html" class="external-link">matrix</a></span><span class="op">(</span></span></span>
<span class="r-in"><span> <span class="fu"><a href="https://rdrr.io/r/base/c.html" class="external-link">c</a></span><span class="op">(</span><span class="st">"form_a_name"</span>, <span class="st">"form_a"</span>,</span></span>
<span class="r-in"><span> <span class="st">"form_a_age"</span>, <span class="st">"form_a"</span>,</span></span>
<span class="r-in"><span> <span class="st">"form_b_name"</span>, <span class="st">"form_b"</span>,</span></span>
<span class="r-in"><span> <span class="st">"form_b_gender"</span>, <span class="st">"form_b"</span><span class="op">)</span>,</span></span>
<span class="r-in"><span> ncol <span class="op">=</span> <span class="fl">2</span>, byrow <span class="op">=</span> <span class="cn">TRUE</span></span></span>
<span class="r-in"><span><span class="op">)</span></span></span>
<span class="r-in"><span></span></span>
<span class="r-in"><span><span class="co"># Split the table</span></span></span>
<span class="r-in"><span><span class="fu">split_non_repeating_forms</span><span class="op">(</span><span class="va">table</span>, <span class="va">universal_fields</span>, <span class="va">fields</span><span class="op">)</span></span></span>
<span class="r-out co"><span class="r-pr">#&gt;</span> $form_a_age</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> id</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> 1 1</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> 2 2</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> 3 3</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> 4 4</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> 5 5</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> </span>
</code></pre></div>
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