title: Pandas: change the order of the columns when using crosstab
body: <p>Pretty simply, I want to change the order of the columns for Panda's <code>crosstab</code>. </p>
  
  <p>Right now, it's in alphabetical order, i.e.: Friday, Monday, Saturday, Sunday, Thursday, Tuesday, Wednesday. I would like it to go in order, i.e.: Monday, Tuesday, ..., Sunday. </p>
  
  <p>This is for a dataset where I wanted to make a <code>crosstab</code> for the days of the week, and the hour of an occurrence. </p>
  
  <p>I'm doing this right now:</p>
  
  <pre><code>pd.crosstab(data_2019.HOUR, data_2019.DAY_OF_WEEK)
  </code></pre>
  
  <p>With the output looking like this: </p>
  
  <pre><code>DAY_OF_WEEK Friday  Monday  Saturday    Sunday  Thursday    Tuesday Wednesday
  HOUR                            
  0   204 255 256 260 225 222 192
  1   121 111 198 230 116 117 145
  2   128 90  217 222 84  111 96
  </code></pre>