title: How to replace id's with same value in a large data set
body: <p>I have a large data set 513 observation in total. one of the column in the data set relates to ID.</p>
  <p>However, in my data set I have one ID repeating (For eg 1). <code>Id1 = 1756, Id2 = 1756</code>.</p>
  <p>How do I correct this and just separate the two ID's without touching the other rows/columns and values of the data set. I have tried using this:</p>
  <pre><code>        Initial_df[nrow(Initial_df$sofifa_id) +1, 1:17] = c('1757', '230204', 
      '71', '9000', '26', '182', '65', 'KV Kortrijk', 'Right', '85', '66', 
  '65', '71', '54', '57', '52', '69', '1' )
  </code></pre>
  <p>Thank you so much for your time.</p>