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<img src="" class="logo" alt=""><h1>Simple REDCap workflow</h1>
<small class="dont-index">Source: <a href="https://github.com/agdamsbo/stRoke/blob/HEAD/vignettes/Simple%20REDCap%20workflow.Rmd" class="external-link"><code>vignettes/Simple REDCap workflow.Rmd</code></a></small>
<div class="d-none name"><code>Simple REDCap workflow.Rmd</code></div>
</div>
<div class="sourceCode" id="cb1"><pre class="downlit sourceCode r">
<code class="sourceCode R"><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"><a href="https://agdamsbo.github.io/stRoke/" class="external-link">stRoke</a></span><span class="op">)</span></span></code></pre></div>
<div class="section level2">
<h2 id="working-with-data-from-redcap">Working with data from REDCap<a class="anchor" aria-label="anchor" href="#working-with-data-from-redcap"></a>
</h2>
<p><a href="">REDCap</a> is an excellent tool for clinical data
acquisition and storage. It is widely used world wide and is the
standard tool for medical research data in Denmark.</p>
<p>In the case of analysing data directly whole storing data in REDCap,
the API functionality is very convenient and secure, as you are not
storing (possibly) sensitive data permanently on your computer.</p>
<p>When using the “events” or “repeated instruments” functionality of
REDCap, the data storage format is a little confusing to work with, when
being accustomed to tidy data.</p>
<p>The <a href=""><code>library(REDCapR)</code></a> provides a simple
way of working with data, however, the package just exports data in
standard format.</p>
<div class="section level3">
<h3 id="examples">Examples<a class="anchor" aria-label="anchor" href="#examples"></a>
</h3>
<div class="sourceCode" id="cb2"><pre class="downlit sourceCode r">
<code class="sourceCode R"><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"><a href="https://ouhscbbmc.github.io/REDCapR/" class="external-link">REDCapR</a></span><span class="op">)</span></span>
<span><span class="co"># Returns the variables "record_id" and "age".</span></span>
<span><span class="va">ds_some_vars</span> <span class="op">&lt;-</span> <span class="fu"><a href="https://ouhscbbmc.github.io/REDCapR/reference/redcap_read.html" class="external-link">redcap_read</a></span><span class="op">(</span></span>
<span> redcap_uri <span class="op">=</span> <span class="st">"https://redcap.au.dk/api/"</span>, <span class="co"># This is the address for projects at the AU-server</span></span>
<span> token <span class="op">=</span> <span class="st">"YOUR_API_KEY_GOES_HERE"</span>,</span>
<span> fields <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">"record_id"</span>, <span class="st">"age"</span><span class="op">)</span></span>
<span><span class="op">)</span><span class="op">$</span><span class="va">data</span> </span>
<span></span>
<span><span class="co"># Return only records with IDs of 1 and 4</span></span>
<span><span class="va">ds_some_rows</span> <span class="op">&lt;-</span> <span class="fu"><a href="https://ouhscbbmc.github.io/REDCapR/reference/redcap_read.html" class="external-link">redcap_read</a></span><span class="op">(</span></span>
<span> redcap_uri <span class="op">=</span> <span class="st">"https://redcap.au.dk/api/"</span>, <span class="co"># This is the address for projects at the AU-server</span></span>
<span> token <span class="op">=</span> <span class="st">"YOUR_API_KEY_GOES_HERE"</span>,</span>
<span> records <span class="op">=</span> <span class="fu"><a href="https://rdrr.io/r/base/c.html" class="external-link">c</a></span><span class="op">(</span><span class="fl">1</span>, <span class="fl">4</span><span class="op">)</span></span>
<span><span class="op">)</span><span class="op">$</span><span class="va">data</span></span></code></pre></div>
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