title: Matlab's Movsum() doesn't start calc at defined starting point X in [X X+t]
body: <p>Suppose the following:</p>
  
  <pre><code>A = [1;2;3;4;5;6;7];
  A1 = table(A);
  </code></pre>
  
  <p><a href="https://i.stack.imgur.com/rc7OM.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/rc7OM.png" alt="enter image description here"></a></p>
  
  <p>The following sums current and 2 following cells beneath:</p>
  
  <pre><code>A2 = movsum(A1{:, 1:end}, [0 2], 'Endpoints', 'fill');`
  </code></pre>
  
  <p>What I want is the sum of what above movsum() does, but without 
  considering the current cell (0 in [0 2]). The very first value of this calculation (= <strong>first row in new table</strong>) should be 5 (2+3), the second 7 (3+4) etc.
  How do I have to adapt my following code for it to do the intended calculations? </p>
  
  <pre><code>A3 = movsum(A1{:, 1:end}, [1 2], 'Endpoints', 'fill');
  </code></pre>
  
  <p>... because A3 returns:</p>
  
  <p><a href="https://i.stack.imgur.com/cSFsC.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/cSFsC.png" alt="enter image description here"></a></p>