title: Find entire row in R data frame?
body: <p>I have a large dataframe <code>df</code> with 10 columns.</p>
  
  <p>For example:</p>
  
  <pre><code>col1 col2 col3 col4 col5 col6 ......
  a    22   13   dd   kuku ppp
  q    123  444  dff  pupu sds
  </code></pre>
  
  <p>I get a new record rec1 with the same structure (10 columns):</p>
  
  <pre><code>rec1 &lt;-  col1 col2 col3 col4 col5 col6 ......
           a    22   13   dd   kuku ppp
  </code></pre>
  
  <p>I want to search df and return true/false if I have found this row or not.
  Please advise how to do this? Dplyr filter?</p>