DF1</span> , <span class='kw'>keys</span> <span class='kw'>=</span> <span class='st'>"id"</span>)</div><div class='output co'>#&gt; No issues were found!</div><div class='input'>
<span class='co'># We can control matching with scale/location for example:</span>

<span class='no'>DF1</span> <span class='kw'>&lt;-</span> <span class='fu'><a href='https://www.rdocumentation.org/packages/base/topics/data.frame'>data.frame</a></span>(
    <span class='kw'>id</span> <span class='kw'>=</span> <span class='fu'><a h