/span>:<span class='fl'>6</span>],
    <span class='kw'>v2</span> <span class='kw'>=</span> <span class='fu'><a href='https://www.rdocumentation.org/packages/base/topics/c'>c</a></span>(<span class='fl'>NA</span> , <span class='fl'>NA</span> , <span class='fl'>1</span> , <span class='fl'>2</span> , <span class='fl'>3</span> , <span class='fl'>NA</span>)
)

<span class='fu'>diffdf</span>(<span class='no'>DF1</span> , <span class='no'>DF2</span> , <span class='kw'>keys</span> <span class='kw'>=</span> <span c