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Anonymous's avatar
Anonymous
Not applicable
7 years ago
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How to shift date axis using what-if parameter?

I have two timeseries that are connected by a DimDate table that I am plotting on a dual-axis line chart. I would like to be able to use a What-If slicer to shift one time series by N months, thereb...
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  • OwenAuger's avatar
    OwenAuger
    7 years ago

    Anonymous

     

    Here is my edited version of your PBIX.
    link

     

    1. First I created a parameter table DateOffset using Modelling => New Parameter.
    2. Added a slicer for this parameter as in your screenshot
    3. I also marked your DimDate table as a date table. This is best to do when you are using time intelligence functions.
    4. I created measures called Primary & Indicator, just for the sake of consistency with your earlier screenshot.
      Indicator uses DATEADD to shift the date filter by the negative of the DateOffset value selected. This gives the appearance of shifting Indicator to the right if a positive DateOffset is selected.
    Primary = 
AVERAGE ( 'Value by Date 1'[Value] )

Indicator = 
CALCULATE (
    AVERAGE ( 'Value by Date 2'[Value] ),
    DATEADD ( DimDate[Date], -[DateOffset Value], MONTH )
)

    Regards,

    Owen

Anonymous's avatar
Anonymous
Not applicable
7 years ago

Owen:

 

So once I do that, how do I create a relationship between the shifted measure and the DimDate? From what I can tell, you can't make relationships using a calculated field.

OwenAuger's avatar
OwenAuger
Super User
7 years ago

Anonymous

I am assuming there are existing relationships between the Date columns of the Primary & Indicator tables and DimDate[Date].

 

My suggested measure doesn't require any new relationships to be created - it just shifts the filter on DimDate[Date] forward or backwards, for the purpose of that measure only. This relies on there already being a relationship between the Indicator table (table containing the values to be "shifted") and DimDate.

 

Did you have a working PBIX file that you could post a link to (similar to the screenshots you added to your original post), and I could create a sample measure within that model?

 

Otherwise, I could mock up a model to illustrate the technique.

 

Regards,

Owen

    • OwenAuger's avatar
      OwenAuger
      Super User
      7 years ago

      Anonymous

       

      Here is my edited version of your PBIX.
      link

       

      1. First I created a parameter table DateOffset using Modelling => New Parameter.
      2. Added a slicer for this parameter as in your screenshot
      3. I also marked your DimDate table as a date table. This is best to do when you are using time intelligence functions.
      4. I created measures called Primary & Indicator, just for the sake of consistency with your earlier screenshot.
        Indicator uses DATEADD to shift the date filter by the negative of the DateOffset value selected. This gives the appearance of shifting Indicator to the right if a positive DateOffset is selected.
      Primary = 
AVERAGE ( 'Value by Date 1'[Value] )

Indicator = 
CALCULATE (
    AVERAGE ( 'Value by Date 2'[Value] ),
    DATEADD ( DimDate[Date], -[DateOffset Value], MONTH )
)

      Regards,

      Owen

      • Anonymous's avatar
        Anonymous
        Not applicable
        7 years ago

        This is perfect, thank you, OwenAuger!