Calculation between a data table and a reference table

Hi.  Some example data in table form or a link to the .pbix would have been very useful.  Try this measure out.  I haven't been able to test it.

Distribution Measure = 

VAR _CurrentDistribution = SELECTEDVALUE('dim_distribution'[distribution])
VAR _Result =
COUNTROWS (
FILTER (
VALUES ( 'Table'[dt (1j)] ),
[ecart_modelisation] <= _CurrentDistribution
)
)

RETURN

_Result

// It's very simple.
// Let's say you've put the
// distribution column in
// a slicer and you can
// select only one option
// at a time. Then this measure
// would give you the
// number of days (=times) where
// the measure [ecart_modelisation]
// is <= to the selected value/option.
// If there is more than one option
// visible in the current context,
// BLANK is returned.

[# Below or Equal] =
var DistributionVal =
    SELECTEDVALUE(
        dim_distribution[distribution]
    )
var Result = 
    IF( NOT ISBLANK( DistributionVal ),
        COUNTROWS(
            FILTER(
                DISTINCT( fact_points_mesure[dt(1j)] ),
                [ecart_modelisation] <= DistributionVal
            )
        )
    )
return
    Result