title: Numpy savetxt to csv with integer integer string
body: <p>I have three lists which I would like to save in a <strong>csv</strong> file using the <code>savetxt</code> function from numpy.</p>
  
  <p>list1, list2 and list3 all have the same length with a single value.</p>
  
  <p>list1,list2 are integer values, list3 has string values</p>
  
  <p>So in the end it should look like this <strong>column1=list1 column2=list2 column3=list3</strong></p>
  
  <p><strong>This works for me if list3 is integer,too. It doesn´t work now, because list3 is a string.</strong></p>
  
  <p>How can I realize this with list3 as a string and find a workaround for <code>c_</code>?</p>
  
  <pre><code>savetxt('data/result.csv', c_(list1,list2,list3), delimiter=',', fmt='%d, %d, %d', 
              header='Name,Value,Value2', comments = '')
  </code></pre>
  
  <p>Thank you very much for help!</p>