title: "Out of Bounds" Error while calculating the mean gene
body: <p>This is my first time trying to complete work in Octave. I have attempted to complete "for loops" to get the mean of each  and then subtract this to centre the results in the 25 samples of the 5 items. I get the right figures, however I also get an out of bounds error (indicated below). Can anyone help me please?</p>
  
  <blockquote>
  <pre><code>error: TrialPartB: A(I,J): row index out of bounds; value 6 out of bound 5
  </code></pre>
  </blockquote>