title: Remove the minimum values per each column of a Matrix
body: <p>If I had a matrix A such as: </p>
  
  <pre><code>63    55    85    21    71
  80    65    85    48    53
  55    60    93    71    66
  21    65    40    33    21
  61    90    80    48    50
  </code></pre>
  
  <p>... and so on how would I find the minimum values of each column and remove those numbers from the matrix completely, meaning essentially I would have one less row overall. </p>
  
  <p>I though about using:</p>
  
  <pre><code>[C,I] = min(A);
  
  A(I) = [];
  </code></pre>
  
  <p>but that wouldn't remove the necessary numbers, and also reshape would not work either. I would like for this to work with an arbitrary number of rows and columns. </p>