Count values that equal to Maximum per category.

Hello Jianpeng Li, thank you very much for your help.

It worked on the data I sent but it did not work on my original data. 
I must have made a mistake in my original measure that I shared.

Anyway I was able to come up with a different approach that worked.

For anyone interested see measure below.

MEASURE =
VAR _max_table =
SUMMARIZE (
ALLSELECTED ( 'Table 2' ),
'Table 2'[category_1],
'Table 2'[category_2],
"max_evaluation", CALCULATE ( MAX ( 'Table 2'[evaluation] ) )
)
VAR _values =
SELECTCOLUMNS (
'Table 2',
"category_1", 'Table 2'[category_1],
"category_2", 'Table 2'[category_2],
"evaluation", 'Table 2'[evaluation]
)
VAR _inter =
INTERSECT ( _max_table, _values )
RETURN
COUNTROWS ( _inter )