title: How can I combine dates and true_predictions to create one DataFrame?
body: <p>I have two variables I'm trying to combine into one single DataFrame using the following code:</p>
  <pre><code>dates = '2018-01-01','2018-02-01','2018-03-01','2018-04-01','2018-05-01','2018-06-01','2018-07- 
  01','2018-08-01','2018-09-01','2018-10-01','2018-11-01','2018-12-01','2019-01-01','2019-02-01','2019- 
  03-01','2019-04-01','2019-05-01','2019-06-01','2019-07-01','2019-08-01','2019-09-01','2019-10- 
  01','2019-11-01','2019-12-01'
  
  true_predictions = pd.DataFrame(true_predictions) (same length as dates)
  </code></pre>
  <p>I'm using the code below to create the DataFrame but I'm getting all the true_predictions as one row, not multiple rows for each value.</p>
  <pre><code>df = pd.DataFrame({'Date': [dates],'Travel':[true_predictions]})
  </code></pre>
  <p>How can I combine dates and true_predictions to create one DataFrame?</p>