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<img src="" class="logo" alt=""><h1>Calculating age from date of birth</h1>
<div class="d-none name"><code>age_calc.Rd</code></div>
</div>
<div class="ref-description section level2">
<p>For age calculations. Vectorised.</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">age_calc</span><span class="op">(</span><span class="va">dob</span>, enddate <span class="op">=</span> <span class="fu"><a href="https://rdrr.io/r/base/Sys.time.html" class="external-link">Sys.Date</a></span><span class="op">(</span><span class="op">)</span>, units <span class="op">=</span> <span class="st">"years"</span>, precise <span class="op">=</span> <span class="cn">TRUE</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>dob</dt>
<dd><p>Date of birth. Data format follows standard POSIX layout. Format is yyyy-mm-dd.</p></dd>
<dt>enddate</dt>
<dd><p>Date to calculate age at. Format is yyyy-mm-dd.</p></dd>
<dt>units</dt>
<dd><p>Default is "years". Can be changed to "days".</p></dd>
<dt>precise</dt>
<dd><p>Default is TRUE. Flag set whether to include calculations of spring years. Only of matter if using units = "days".</p></dd>
</dl></div>
<div class="section level2">
<h2 id="value">Value<a class="anchor" aria-label="anchor" href="#value"></a></h2>
<p>Vector of age</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"># Kim Larsen (cpr is known from album)</span></span></span>
<span class="r-in"><span> <span class="va">dob</span><span class="op">&lt;-</span><span class="fu">daDoctoR</span><span class="fu">::</span><span class="fu">dob_extract_cpr</span><span class="op">(</span><span class="st">"231045-0637"</span><span class="op">)</span></span></span>
<span class="r-err co"><span class="r-pr">#&gt;</span> <span class="error">Error in loadNamespace(x):</span> there is no package called daDoctoR</span>
<span class="r-in"><span> <span class="va">date</span><span class="op">&lt;-</span><span class="fu"><a href="https://rdrr.io/r/base/as.Date.html" class="external-link">as.Date</a></span><span class="op">(</span><span class="st">"2018-09-30"</span><span class="op">)</span></span></span>
<span class="r-in"><span> <span class="fu"><a href="https://rdrr.io/r/base/Round.html" class="external-link">trunc</a></span><span class="op">(</span><span class="fu">age_calc</span><span class="op">(</span><span class="va">dob</span>,<span class="va">date</span><span class="op">)</span><span class="op">)</span></span></span>
<span class="r-err co"><span class="r-pr">#&gt;</span> <span class="error">Error in age_calc(dob, date):</span> object 'dob' not found</span>
</code></pre></div>
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