title: Show a zero instead of blank in a matrix for dates within facts table
body: <p>My calendar table has dates between 1-1-2000 and 31-12-2017.</p>
  
  <p>However, the facts table contains data only between 1-11-2016 and 1-3-2017.
  In a measure, I used the the following expression to display a measure in a matrix:</p>
  
  <pre><code>Saldo em EUR = IF(ISBLANK(SUM('Table1'[Column1]));BLANK();CALCULATE( etc... ))
  </code></pre>
  
  <p>This measure checks if the sum of Column1 is blank and it shows a blank field in the matrix to prevent it from showing all the dates range in the calendar table.</p>
  
  <p>But - It also shows a blank field for the dates within the facts table where there's no value for the sum of Column1. </p>
  
  <p>I'd like it to show a zero instead of a blank field - how can I do that and still preventing the matrix from showing all the dates range in the calendar table?</p>
  
  <p>Thanks in advance for helping!</p>