title: Not-case sensitive 'ismember' use in MATLAB
body: <p>I have two cells with the first column as string.  I am currently using <code>ismember</code> to match the first column elements in both the cells.  But ismember is case sensitive.  I cannot use strcmpi because the cells are of unequal size.  Could you suggest another approach?</p>
  
  <pre><code>cell1 = { 'AAPL' [2001] ; 'GOOG' [1999] ; 'MSFT' [2010] } ; 
  
  cell2 = { 'AMZN' [2009] ; 'HP' [2011] ; 'CSC' [2005] ; 'Goog' [2010] } ;
  </code></pre>
  
  <p>Not-case sensitive approach:</p>
  
  <pre><code>tf = ismember(cell1(:,1), cell2(:,1)) ; % tf should be now [0; 1; 0]
  </code></pre>
  
  <p>Thanks!</p>