Use measure to evaluate row value

Hi swestendorp 

the Outlier-"Measure" isn't a valid syntax for a measure, as it is missing aggregation-commands. With "SUM" as aggregation it would look like so and work as a measure:

Outlier = 
VAR UCL =
 CALCULATE(
    AVERAGEX( 'Estimate vs actual', 'Estimate vs actual'[Variance EvA] ) -- Mean
    + STDEV.S( 'Estimate vs actual'[Variance EvA] ) -- STDEV
    * (2,66),
    ALLSELECTED( 'Estimate vs actual' )
)
VAR LCL = 
 CALCULATE(
    AVERAGEX( 'Estimate vs actual', 'Estimate vs actual'[Variance EvA] ) -- Mean
    - STDEV.P( 'Estimate vs actual'[Variance EvA] ) -- STDEV
    * (2,66),
    ALLSELECTED( 'Estimate vs actual' )
)
RETURN
IF (
    SUM('Estimate vs actual'[Variance EvA])
        >=  LCL 
        && SUM('Estimate vs actual'[Variance EvA])
            <=  UCL , 
    "No Outlier",
    "Outlier"
)

So you'd probably have used it as a column? Then of course, the ALLSELECTED wouldn't work, as it would only work on measures (columns values are calculated during load of the data model and are not aware of any filters on the report).

Please check out the attached file where I mocked up some things that should give food for thought (it's got some loose ends that might force you to rethink your requirements).