title: Use dataframe column as arguments in function - iPython
body: <p>I am new with python and any help would be appreciated!</p>
  
  <p>I have a dataframe with one column with coordinates:</p>
  
  <pre><code>gridReference
  (190000, 200000)
  (560000, 250000)
  (560000, 250000)
  (560000, 250000)
  (560000, 250000)
  (560000, 250000)
  (320000, 80000)
  </code></pre>
  
  <p>I also have a function which converts the coordinates to lat long positions 
  <code>toConvert(E,N)</code> - I am trying to work out how to iterate through the gridReference column and input the values into the toConvert function as arguments then produce the new Lat-Lon coordinates in another dataframe.</p>
  
  <p>Hope that makes sense - Thanks in advance!</p>