Dynamic measure using SELECTEDVALUE to set base date

[cinni_mini]

Hi community,

I have the following DAX to calculated indices based on the set base date. In my DAX right now the base date is static and set at 01.31.2022, which works fine and also gives the right outputs over time. But if I would subsitute the static base date with VAR SelectedBaseDate = SELECTEDVALUE(CalendarTable[Date]) (slicer selection) it doesn't work anymore. Can someone help me?

First DAX:

Base Date Index Value =

VAR SelectedBaseDate = DATE(2022, 1, 31) -- Fallback to a default date if none is selected

RETURN

CALCULATE(

MAX(Component_Index_Values[Component Index Value]),

ALL(CalendarTable), -- Ignoring slicer selections on CalendarTable

Component_Index_Values[Component Index Date] = SelectedBaseDate

)

2nd DAX based on results of 1st DAX:

 Component Index Value (from Base Date) =

VAR CurrentIndexValue = MAX('Component_Index_Values'[Component Index Value])

VAR BaseIndexValue = [Component Base Index Value] -- This should fetch the base index value correctly now

RETURN

IF(

NOT ISBLANK(BaseIndexValue) && BaseIndexValue <> 0,

(CurrentIndexValue / BaseIndexValue) * 100,

BLANK()

)

The date selection is controlled by a single choice slicer. Thanks! Looking forward to your advices.

[cinni_mini]

Hi Yang,

thanks for reaching out. It still doesn't work, the measure work with a static date, but doesn't take the value from the slicer. Do you have any recommendations why the slicer value is not taken by the measure DAX? Thanks!

Best

[Anonymous]

Hi, @cinni_mini 

Based on your description, I have created some measures to achieve the effect you are looking for. Following picture shows the effect of the display.

Measure:

Base Date Index Value =

VAR _selectedBaseDate =

    SELECTEDVALUE ( CalendarTable[Component Index Date] )

VAR _baseDateIndexValue =

    CALCULATE (

        MAX ( Component_Index_Values[Component Index Value] ),

        FILTER (

            Component_Index_Values,

            Component_Index_Values[Component Index Date] = _selectedBaseDate

        ),

        ALL ( Component_Index_Values )

    )

RETURN

    _baseDateIndexValue

If this does not work, could you please share some sample data without sensitive information and expected output.

Best Regards,
Yang
Community Support Team

If there is any post helps, then please consider Accept it as the solution  to help the other members find it more quickly.
If I misunderstand your needs or you still have problems on it, please feel free to let us know. Thanks a lot!

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