title: Time-varying data: list of tuples vs 2D array?
body: <p>My example code is in python but I'm asking about the general principle.</p>
  
  <p>If I have a set of data in time-value pairs, should I store these as a 2D array or as a list of tuples? for instance, if I have this data:</p>
  
  <pre><code>v=[1,4,4,4,23,4]
  t=[1,2,3,4,5,6]
  </code></pre>
  
  <p>Is it generally better to store it like this:</p>
  
  <pre><code>data=[v,t]
  </code></pre>
  
  <p>or as a list of tuples:</p>
  
  <pre><code>data=[(1,1),(4,2)(4,3)...]
  </code></pre>
  
  <p>Is there a "standard" way of doing this?</p>