How to calculate dates with no activity?

[Anonymous]

Assuming I have the following table:

Date	Time period	Fraction	Activity_type
17-04-18	Whole Day	1	7
18-04-18	Half Day(until 14)	0.5	7
19-04-18	Half Day(after 14)	0.5	7
20-04-18	Half Day(until 14)	0.5	7
20-04-18	Half Day(after 14)	0.5	7
24-04-18	Quarter Day1(until 11)	0.25	7
24-04-18	Quarter Day2(11 to 14)	0.25	7
24-04-18	Quarter Day3(from 14 to 16)	0.25	7

I need to calculate the amount of missing Fraction for a certain date range(which I filter using a Multi Box).
Normally every day should have a total of Fraction of 1, but there might be Time periods in which no activity was introduced.
Now, I need a way to bring the following output:

Date	Time period	Fraction
18-04-18	Half Day(after 14)	0.5
19-04-18	Half Day(until 14)	0.5
23-04-18	Whole Day	1
24-04-18	Quarter Day4(from 16 to end of program)	0.25

Explanation: The Fraction of a single day should sum up to 1. If it doesn't, the rest of the day should be in the output table. Also if there is no data for a working day(case in point the date 23-04-18 doesn't have any data recorded), the Time Period should be "Whole Day" with Fraction of 1 in the output table.

Now the question is: How can I obtain the output table with the requested dates?

[sunny_talwar]

I think what you really need is to populate your missing data with may be Fraction as 0.

Generating Missing Data In QlikView