# QlikView Creating Analytics

Discussion Board for collaboration related to Creating Analytics for QlikView.

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## using IFs and Set Analysis in a calculated dimension

All - my first post. I am trying to add a calculated dimension to a chart. My goal is for each data point to represent 12 months.

For the field InvoiceDate, I can calculate the range I want with:

=if(month(InvoiceDate)=12,

makedate(year(InvoiceDate),month(InvoiceDate)-11) & ' to ' & makedate(year(InvoiceDate)+1,1),

makedate(year(InvoiceDate)-1,month(InvoiceDate)+1) & ' to BEFORE ' & makedate(year(InvoiceDate),month(InvoiceDate)+1))

This works sufficiently to 'see' the range I would get on a given date. But when I try to apply the general case using set analysis, I don't know how to properly format.

Here's what I have:

= if(month(InvoiceDate)=12,

{\$<InvoiceDate= {">=\$(=makedate(year(InvoiceDate),month(InvoiceDate)-11))<\$(=makedate(year(InvoiceDate)+1,1))"}>},

{\$<InvoiceDate={">=\$(=makedate(year(InvoiceDate)-1,month(InvoiceDate)+1))<\$(=makedate(year(InvoiceDate),month(InvoiceDate)+1)"}>}

)

I realize I'm trying to redefine Invoice Date (probably incorrect) but don't know what else to do. Thanks in advance,

Crabby!

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