title: Forecasting with time series in python
body: <p>I need some help from you guys.
  I actually want to predict the next values of a variable Y (c_start) when X (day) represent the time.
  As you can see in the picture, i have values for the attribute "c_start" and I would like to predict the next "c_start" values for the next 7 days(for example).
  May someone help me?</p>
  
  <p>Thx guys!
  <img src="https://i.stack.imgur.com/MNKM6.png" alt="My dataframe"></p>
  
  <p><img src="https://i.stack.imgur.com/2htyO.png" alt="Plot"></p>