title: Repeat a row of dataframe n number of times in a list of dataframes
body: <p>How can I repeat and bind a row of a dataframe n number of times in each dataframe of a list? So, for example with this list:</p>
  
  <pre><code>[[1]]
    x z y
   1 2 3
  
  [[2]]
    x z y
   4 5 6
  </code></pre>
  
  <p>this is the desired output if n is 1:</p>
  
  <pre><code>[[1]]
    x z y
   1 2 3
   1 2 3
  [[2]]
    x z y
   4 5 6
   4 5 6
  </code></pre>
  
  <p>Data:</p>
  
  <pre><code>list1 &lt;- data.frame("x" = 1, "z" = 2, "y" = 3)
     list2 &lt;- data.frame("x" = 4, "z" = 5, "y" = 6)
      Mylist &lt;- list(list1, list2)   
  </code></pre>