Problem: Total number in a selection

[#1]

I'm developing a QV document that, among other things, are going to calculate average absence data for a number of schools per Term.

I have to divide the number of days absent (column C)  on the number of students in the current selection (column A). However, I can't just divide the data for absence code GFE on the number of students with the absence code GFE, I have to divide it on the total number of students in the current selection in the school. That is, for school X I have to divide the different numbers in column C on the total 1, and for school Y I have to divide the numbers on total 68.

I can't divide on the number of students at the school, because not everyone is registered at each term. I have to have an expression that divides on the total number of students in the current selection at each school. Ie 505 for School X, and 68 for school Y.

Expression for Number of days absent: sum(Sessions)

Expression for Average: (Sum(Sessions))/count(total{$}PersonCounter)

Expression for number of students: sum(PersonCounter)

Expression for number of students at the school: sum(OrgPersonCount)

To clarify: I need an expression that will calculate the GFE for School X to be 0,97 (488 number of days absent/505 total number of students in the selection for school X).

Any suggestions?

Message was edited by: Joachim Hollekim

[rustyfishbones]

could you share part of the Application?

[swuehl]

Not sure if I fully understood, a sample application with your expected results may help.

You can look into using TOTAL with a field list, like

=count(TOTAL<Organization> PersonCounter)

[#4]

What do you need?

[#5]

Sorry, that did not work.

[rustyfishbones]

the qvw you are working on, or a reduced data version of it

[#7]

Ah, I see. I have attached an example to my original post.

[Gysbert_Wassenaar · Accepted solution]

Try this as expression for the average: Sum(Sessions)/sum(total <OrganisationTitle> PersonCounter)

[swuehl]

You need to use the correct field name for your dimension Organization:

=count(total<[OrganisationTitle]>  PersonCounter)

[#10]

That did it! Thank you very much!