Hide data from visual for dates that are missing

Hi, 

I have a measure that calculates a daily value based on quotations stored in another table.  There are not quotations for every date and I would like to hide the values for the dates without quotations from my visual. In below example there are quotations for 6th, 7th and 10th of October and I only want to show these dates in my visual, because for the rest of the dates the calulation gives wrong values due to lacking quotations. In the columns of my matrix visual, I have the dates from the quotation-table and although there are only three dates, it shows every single date? How come?