question about a count rows by date

[Anonymous]

Hello,

I want to create a new indicator in my table to calculate the number of surveys by the year of the last survey date.

I tried to create a measure to identify the last date of the survey and then do a: calculate(count('barometrie_à_froid'[External Key]),'barometrie_à_froid'[Survey Date]=year([a year date of survey]))

But this does not work

[tamerj1]

Hi @Anonymous 
The good practice is to first create a new calculated column that calculates the year then use it in the measure. Howeve, you may also use

=
CALCULATE (
    COUNT ( 'barometrie_à_froid'[External Key] ),
    ALLEXCEPT ( 'barometrie_à_froid', 'barometrie_à_froid'[Survey Date].YEAR )
)