title: How to remove duplicate edges in matlab
body: <p>I have a table with 4850626 rows and three columns out of the 4850626 rows 2425313 are duplicates. The table will look like this</p>
  
  <pre><code>node1   node2   score
  225     128      0.9
  256     857      0.7
  128     225      0.9
  857     256      0.7
   .       .        .
   .       .        .
  </code></pre>
  
  <p>How could I remove the duplicate from this big table?</p>