The calendar allows users to choose a period for their analyses. Users can choose from set periods such as Day/Week/Month/Quarter/Year, or other periods such as the “Last 30 days” or “Last 90 days”. There is also an area where users can enter a start date and end date. In addition to these periods, users can also select recurring periods, such as “Every Monday”, “Every Tuesday”, etc. or specific dates, such as February 18 and 21. A button is also available so that users can select the desired comparison period: a second calendar will then appear on screen allowing users to indicate the comparison period.