Filter context change in Summarize and defined measure

[ADITYAGEDAM]

I am learning DAX, Observed something weird,help me to understand -

I defined the measure as -

fIRSTYEAR MEASURE =
CALCULATE (
MIN ( 'Noble Prizes'[nobelPrizes.awardYear] ),
ALL ( 'Noble Prizes'[nobelPrizes.category.en] )
)

so when I make the table with the defined measure and Categories results to -

which I understand completely.

but when I try to use the same measure in SUMMARIZECOLUMNS as -

Table 2 =
SUMMARIZECOLUMNS (
'Noble Prizes'[nobelPrizes.category.en],
'Noble Prizes'[nobelPrizes.categoryFullName.en],
"first year", [fIRSTYEAR MEASURE]
)

I get the following result when I make a table with first year -

How do we justify the Economics Sciences First year, it's 1969 and 1901?

 Am I missing something?

[lbendlin · Accepted solution]

you forgot the CALCULATE around the measure.

I recommend you install and use DAXDebugOutput.  Read about EVALUATEANDLOG, it is a fantastic tool to understand what DAX is doing on each step.