title: From series to dictionary
body: <p>Hello good night everyone, I have a doubt.</p>
  
  <p>It is possible to convert a vector (pandas series) of days of the week into a dictionary such that the value of how many days of the week is in the vector is accounted for.</p>
  
  <p>Something like {'Monday': 4, 'Tuesday': 5 ... 'Friday': 8}</p>
  
  <p>Where the days of the week are the key and its frequency the value.</p>