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is used to determine which fields should be included in each resultant table."><title>Split REDCap repeating instruments table into multiple tables — REDCap_split • REDCapCAST</title><!-- favicons --><link rel="icon" type="image/png" sizes="16x16" href="../favicon-16x16.png"><link rel="icon" type="image/png" sizes="32x32" href="../favicon-32x32.png"><link rel="apple-touch-icon" type="image/png" sizes="180x180" href="../apple-touch-icon.png"><link rel="apple-touch-icon" type="image/png" sizes="120x120" href="../apple-touch-icon-120x120.png"><link rel="apple-touch-icon" type="image/png" sizes="76x76" href="../apple-touch-icon-76x76.png"><link rel="apple-touch-icon" type="image/png" sizes="60x60" href="../apple-touch-icon-60x60.png"><script src="../deps/jquery-3.6.0/jquery-3.6.0.min.js"></script><meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no"><link href="../deps/bootstrap-5.2.2/bootstrap.min.css" rel="stylesheet"><script src="../deps/bootstrap-5.2.2/bootstrap.bundle.min.js"></script><!-- Font Awesome icons --><link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.12.1/css/all.min.css" integrity="sha256-mmgLkCYLUQbXn0B1SRqzHar6dCnv9oZFPEC1g1cwlkk=" crossorigin="anonymous"><link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.12.1/css/v4-shims.min.css" integrity="sha256-wZjR52fzng1pJHwx4aV2AO3yyTOXrcDW7jBpJtTwVxw=" crossorigin="anonymous"><!-- bootstrap-toc --><script src="https://cdn.jsdelivr.net/gh/afeld/bootstrap-toc@v1.0.1/dist/bootstrap-toc.min.js" integrity="sha256-4veVQbu7//Lk5TSmc7YV48MxtMy98e26cf5MrgZYnwo=" crossorigin="anonymous"></script><!-- headroom.js --><script src="https://cdnjs.cloudflare.com/ajax/libs/headroom/0.11.0/headroom.min.js" integrity="sha256-AsUX4SJE1+yuDu5+mAVzJbuYNPHj/WroHuZ8Ir/CkE0=" crossorigin="anonymous"></script><script src="https://cdnjs.cloudflare.com/ajax/libs/headroom/0.11.0/jQuery.headroom.min.js" integrity="sha256-ZX/yNShbjqsohH1k95liqY9Gd8uOiE1S4vZc+9KQ1K4=" crossorigin="anonymous"></script><!-- clipboard.js --><script src="https://cdnjs.cloudflare.com/ajax/libs/clipboard.js/2.0.6/clipboard.min.js" integrity="sha256-inc5kl9MA1hkeYUt+EC3BhlIgyp/2jDIyBLS6k3UxPI=" crossorigin="anonymous"></script><!-- search --><script src="https://cdnjs.cloudflare.com/ajax/libs/fuse.js/6.4.6/fuse.js" integrity="sha512-zv6Ywkjyktsohkbp9bb45V6tEMoWhzFzXis+LrMehmJZZSys19Yxf1dopHx7WzIKxr5tK2dVcYmaCk2uqdjF4A==" crossorigin="anonymous"></script><script src="https://cdnjs.cloudflare.com/ajax/libs/autocomplete.js/0.38.0/autocomplete.jquery.min.js" integrity="sha512-GU9ayf+66Xx2TmpxqJpliWbT5PiGYxpaG8rfnBEk1LL8l1KGkRShhngwdXK1UgqhAzWpZHSiYPc09/NwDQIGyg==" crossorigin="anonymous"></script><script src="https://cdnjs.cloudflare.com/ajax/libs/mark.js/8.11.1/mark.min.js" integrity="sha512-5CYOlHXGh6QpOFA/TeTylKLWfB3ftPsde7AnmhuitiTX4K5SqCLBeKro6sPS8ilsz1Q4NRx3v8Ko2IBiszzdww==" crossorigin="anonymous"></script><!-- pkgdown --><script src="../pkgdown.js"></script><meta property="og:title" content="Split REDCap repeating instruments table into multiple tables — REDCap_split"><meta property="og:description" content="This will take output from a REDCap export and split it into a base table
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and child tables for each repeating instrument. Metadata
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<img src="../logo.png" class="logo" alt=""><h1>Split REDCap repeating instruments table into multiple tables</h1>
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<small class="dont-index">Source: <a href="https://github.com/agdamsbo/REDCapCAST/blob/HEAD/R/REDCap_split.r" class="external-link"><code>R/REDCap_split.r</code></a></small>
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<div class="d-none name"><code>REDCap_split.Rd</code></div>
</div>
<div class="ref-description section level2">
<p>This will take output from a REDCap export and split it into a base table
and child tables for each repeating instrument. Metadata
is used to determine which fields should be included in each resultant table.</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">REDCap_split</span><span class="op">(</span></span>
<span> <span class="va">records</span>,</span>
<span> <span class="va">metadata</span>,</span>
<span> primary_table_name <span class="op">=</span> <span class="st">""</span>,</span>
<span> forms <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">"repeating"</span>, <span class="st">"all"</span><span class="op">)</span></span>
<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>records</dt>
<dd><p>Exported project records. May be a <code>data.frame</code>,
<code>response</code>, or <code>character</code> vector containing JSON from an API
call.</p></dd>
<dt>metadata</dt>
<dd><p>Project metadata (the data dictionary). May be a
<code>data.frame</code>, <code>response</code>, or <code>character</code> vector containing
JSON from an API call.</p></dd>
<dt>primary_table_name</dt>
<dd><p>Name given to the list element for the primary
output table (as described in <em>README.md</em>). Ignored if
<code>forms = 'all'</code>.</p></dd>
<dt>forms</dt>
<dd><p>Indicate whether to create separate tables for repeating
instruments only or for all forms.</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 <code>"data.frame"</code>s. The number of tables will differ
depending on the <code>forms</code> option selected.</p>
<p></p>
<ul><li><p><code>'repeating'</code>: one base table and one or more
tables for each repeating instrument.</p></li>
<li><p><code>'all'</code>: a data.frame for each instrument, regardless of
whether it is a repeating instrument or not.</p></li>
</ul></div>
<div class="section level2">
<h2 id="author">Author<a class="anchor" aria-label="anchor" href="#author"></a></h2>
<p>Paul W. Egeler, M.S., GStat</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="kw">if</span> <span class="op">(</span><span class="cn">FALSE</span><span class="op">)</span> <span class="op">{</span></span></span>
<span class="r-in"><span><span class="co"># Using an API call -------------------------------------------------------</span></span></span>
<span class="r-in"><span></span></span>
<span class="r-in"><span><span class="kw"><a href="https://rdrr.io/r/base/library.html" class="external-link">library</a></span><span class="op">(</span><span class="va">RCurl</span><span class="op">)</span></span></span>
<span class="r-in"><span></span></span>
<span class="r-in"><span><span class="co"># Get the records</span></span></span>
<span class="r-in"><span><span class="va">records</span> <span class="op">&lt;-</span> <span class="fu"><a href="https://rdrr.io/pkg/RCurl/man/postForm.html" class="external-link">postForm</a></span><span class="op">(</span></span></span>
<span class="r-in"><span> uri <span class="op">=</span> <span class="va">api_url</span>, <span class="co"># Supply your site-specific URI</span></span></span>
<span class="r-in"><span> token <span class="op">=</span> <span class="va">api_token</span>, <span class="co"># Supply your own API token</span></span></span>
<span class="r-in"><span> content <span class="op">=</span> <span class="st">'record'</span>,</span></span>
<span class="r-in"><span> format <span class="op">=</span> <span class="st">'json'</span>,</span></span>
<span class="r-in"><span> returnFormat <span class="op">=</span> <span class="st">'json'</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"># Get the metadata</span></span></span>
<span class="r-in"><span><span class="va">metadata</span> <span class="op">&lt;-</span> <span class="fu"><a href="https://rdrr.io/pkg/RCurl/man/postForm.html" class="external-link">postForm</a></span><span class="op">(</span></span></span>
<span class="r-in"><span> uri <span class="op">=</span> <span class="va">api_url</span>, <span class="co"># Supply your site-specific URI</span></span></span>
<span class="r-in"><span> token <span class="op">=</span> <span class="va">api_token</span>, <span class="co"># Supply your own API token</span></span></span>
<span class="r-in"><span> content <span class="op">=</span> <span class="st">'metadata'</span>,</span></span>
<span class="r-in"><span> format <span class="op">=</span> <span class="st">'json'</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"># Convert exported JSON strings into a list of data.frames</span></span></span>
<span class="r-in"><span><span class="fu">REDCapRITS</span><span class="fu">::</span><span class="fu">REDCap_split</span><span class="op">(</span><span class="va">records</span>, <span class="va">metadata</span><span class="op">)</span></span></span>
<span class="r-in"><span></span></span>
<span class="r-in"><span><span class="co"># Using a raw data export -------------------------------------------------</span></span></span>
<span class="r-in"><span></span></span>
<span class="r-in"><span><span class="co"># Get the records</span></span></span>
<span class="r-in"><span><span class="va">records</span> <span class="op">&lt;-</span> <span class="fu"><a href="https://rdrr.io/r/utils/read.table.html" class="external-link">read.csv</a></span><span class="op">(</span><span class="st">"/path/to/data/ExampleProject_DATA_2018-06-03_1700.csv"</span><span class="op">)</span></span></span>
<span class="r-in"><span></span></span>
<span class="r-in"><span><span class="co"># Get the metadata</span></span></span>
<span class="r-in"><span><span class="va">metadata</span> <span class="op">&lt;-</span> <span class="fu"><a href="https://rdrr.io/r/utils/read.table.html" class="external-link">read.csv</a></span><span class="op">(</span></span></span>
<span class="r-in"><span><span class="st">"/path/to/data/ExampleProject_DataDictionary_2018-06-03.csv"</span><span class="op">)</span></span></span>
<span class="r-in"><span></span></span>
<span class="r-in"><span><span class="co"># Split the tables</span></span></span>
<span class="r-in"><span><span class="fu">REDCapRITS</span><span class="fu">::</span><span class="fu">REDCap_split</span><span class="op">(</span><span class="va">records</span>, <span class="va">metadata</span><span class="op">)</span></span></span>
<span class="r-in"><span></span></span>
<span class="r-in"><span><span class="co"># In conjunction with the R export script ---------------------------------</span></span></span>
<span class="r-in"><span></span></span>
<span class="r-in"><span><span class="co"># You must set the working directory first since the REDCap data export</span></span></span>
<span class="r-in"><span><span class="co"># script contains relative file references.</span></span></span>
rerender
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<span class="r-in"><span><span class="va">old</span> <span class="op">&lt;-</span> <span class="fu"><a href="https://rdrr.io/r/base/getwd.html" class="external-link">getwd</a></span><span class="op">(</span><span class="op">)</span></span></span>
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<span class="r-in"><span><span class="fu"><a href="https://rdrr.io/r/base/getwd.html" class="external-link">setwd</a></span><span class="op">(</span><span class="st">"/path/to/data/"</span><span class="op">)</span></span></span>
<span class="r-in"><span></span></span>
<span class="r-in"><span><span class="co"># Run the data export script supplied by REDCap.</span></span></span>
<span class="r-in"><span><span class="co"># This will create a data.frame of your records called 'data'</span></span></span>
<span class="r-in"><span><span class="kw"><a href="https://rdrr.io/r/base/source.html" class="external-link">source</a></span><span class="op">(</span><span class="st">"ExampleProject_R_2018-06-03_1700.r"</span><span class="op">)</span></span></span>
<span class="r-in"><span></span></span>
rerender
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<span class="r-in"><span><span class="co"># Get the metadatan</span></span></span>
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<span class="r-in"><span><span class="va">metadata</span> <span class="op">&lt;-</span> <span class="fu"><a href="https://rdrr.io/r/utils/read.table.html" class="external-link">read.csv</a></span><span class="op">(</span><span class="st">"ExampleProject_DataDictionary_2018-06-03.csv"</span><span class="op">)</span></span></span>
<span class="r-in"><span></span></span>
<span class="r-in"><span><span class="co"># Split the tables</span></span></span>
<span class="r-in"><span><span class="fu">REDCapRITS</span><span class="fu">::</span><span class="fu">REDCap_split</span><span class="op">(</span><span class="va">data</span>, <span class="va">metadata</span><span class="op">)</span></span></span>
rerender
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<span class="r-in"><span><span class="fu"><a href="https://rdrr.io/r/base/getwd.html" class="external-link">setwd</a></span><span class="op">(</span><span class="va">old</span><span class="op">)</span></span></span>
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<span class="r-in"><span><span class="op">}</span></span></span>
</code></pre></div>
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