Why does this variable not work?

[airwolf39]

Why is the variable 'calc' greyed out at the bottom?

[ALLUREAN]

Hi, @airwolf39 

Try to put var calc = ..... just below measure name, and first SWITCH after return

Measure = 
var X = [....]

var Y = [,,,,,]

RETURN

SWITCH....

[airwolf39]

The total is now wrong because the variable is outside of the isinscope function 

[ALLUREAN]

Text like VAR xyz = [...] cannot be inside, they should stay isolated and used the name xyz in expressions.