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nonDuplicated.html
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nonDuplicated.html
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<title>Non Duplicated Rows in Data Frame — nonDuplicated • mefa4</title>
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<h1>Non Duplicated Rows in Data Frame</h1>
<div class="hidden name"><code>nonDuplicated.Rd</code></div>
</div>
<div class="ref-description">
<p>Subset a data frame using non duplicated elements in a vector.</p>
</div>
<pre class="usage"><span class='fu'>nonDuplicated</span>(<span class='no'>x</span>, <span class='no'>y</span>, <span class='kw'>change.rownames</span> <span class='kw'>=</span> <span class='fl'>FALSE</span>, <span class='kw'>na.rm</span> <span class='kw'>=</span> <span class='fl'>FALSE</span>)</pre>
<h2 class="hasAnchor" id="arguments"><a class="anchor" href="#arguments"></a>Arguments</h2>
<table class="ref-arguments">
<colgroup><col class="name" /><col class="desc" /></colgroup>
<tr>
<th>x</th>
<td><p>a data frame.</p></td>
</tr>
<tr>
<th>y</th>
<td><p>a vector. It can be a name of a column in <code>x</code> without quotes.</p></td>
</tr>
<tr>
<th>change.rownames</th>
<td><p>if original rownames of <code>x</code> are to be replaced by unique
non duplicated values of <code>y</code>.</p></td>
</tr>
<tr>
<th>na.rm</th>
<td><p>logical. If rows should be removed where <code>y</code> is <code>NA</code>.
This is to be applied if values of <code>y</code> are used as rownames
by setting <code>change.rownames = TRUE</code></p></td>
</tr>
</table>
<h2 class="hasAnchor" id="details"><a class="anchor" href="#details"></a>Details</h2>
<p>This function is handy to keep only one set of
duplicated data that is common
in long formatted database files.</p>
<h2 class="hasAnchor" id="value"><a class="anchor" href="#value"></a>Value</h2>
<p>A data frame.</p>
<h2 class="hasAnchor" id="see-also"><a class="anchor" href="#see-also"></a>See also</h2>
<div class='dont-index'><p><code><a href='https://rdrr.io/r/base/duplicated.html'>duplicated</a></code></p></div>
<h2 class="hasAnchor" id="examples"><a class="anchor" href="#examples"></a>Examples</h2>
<pre class="examples"><div class='input'><span class='fu'><a href='https://rdrr.io/r/utils/data.html'>data</a></span>(<span class='no'>abmibirds</span>)
<span class='no'>x</span> <span class='kw'><-</span> <span class='fu'>nonDuplicated</span>(<span class='no'>abmibirds</span>, <span class='no'>abmibirds</span>$<span class='no'>ABMI.Site</span>, <span class='fl'>TRUE</span>)
<span class='co'>## or equivalently</span>
<span class='co'>#x <- nonDuplicated(abmibirds, ABMI.Site, TRUE)</span>
<span class='fu'><a href='https://rdrr.io/r/base/dim.html'>dim</a></span>(<span class='no'>abmibirds</span>)</div><div class='output co'>#> [1] 59341 21</div><div class='input'><span class='fu'><a href='https://rdrr.io/r/base/dim.html'>dim</a></span>(<span class='no'>x</span>)</div><div class='output co'>#> [1] 330 21</div><div class='input'><span class='fu'><a href='https://rdrr.io/r/base/length.html'>length</a></span>(<span class='fu'><a href='https://rdrr.io/r/base/unique.html'>unique</a></span>(<span class='no'>abmibirds</span>$<span class='no'>ABMI.Site</span>))</div><div class='output co'>#> [1] 330</div></pre>
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<h2>Contents</h2>
<ul class="nav nav-pills nav-stacked">
<li><a href="#arguments">Arguments</a></li>
<li><a href="#details">Details</a></li>
<li><a href="#value">Value</a></li>
<li><a href="#see-also">See also</a></li>
<li><a href="#examples">Examples</a></li>
</ul>
<h2>Author</h2>
<p>Peter Solymos <solymos@ualberta.ca></p>
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